Is there such a thing as a perfect marriage? David thought so. But when his wife, Mary Rose, dies suddenly he has to think again. In reliving their 20 years together David sees that the ground beneath them had shifted and he simply hadn't noticed. Or had chosen not to. Figuring out who Mary Rose really was and the secrets that she kept - some of these hidden in plain sight - makes David wonder if he really knew her. Did he even know himself? Nothing but Blue Sky is a precise and tender story of love in marriage. 

Twins Jeanie and Julius have always been different from other people. At 51 years old, they still live with their mother, Dot, in rural isolation and poverty. Inside the walls of their old cottage, they make music, and in the garden they grow (and sometimes kill, everything they need for sustenance. But when Dot dies suddenly, threats to their livelihood start raining down. Jeanie and Julius would do anything to preserve their small sanctuary against the perils of the outside world.

In Baxter's Beach, Barbados, Lala's grandmother Wilma tells the story of the one-armed sister, a cautionary tale about what happens to girls who disobey their mothers. For Wilma, it's the story of a wilful adventurer, who ignores the warnings of those around her, and suffers as a result. When Lala grows up, she sees it offers hope - of life after losing a baby in the most terrible of circumstances and marrying the wrong man. 

Ava, newly arrived in Hong Kong from Dublin, spends her days teaching English to rich children. Julian is a banker. A banker who likes to spend money on Ava, to have sex and discuss fluctuating currencies with her. But when she asks whether he loves her, he cannot say more than 'I like you a great deal'. Enter Edith, a lawyer. Refreshingly enthusiastic and unapologetically earnest, Edith takes Ava to the theatre when Julian leaves Hong Kong for work. Quickly, she becomes something Ava looks forward to. And then Julian writes to tell Ava he is coming back to Hong Kong....

When Hannah is invited into the First-Class carriage of the London to Penzance train by Jinni, she walks into a spider's web. Now a poor, young single mother, Hannah once escaped Cornwall to go to university. But once she married Jake and had his child, her dreams were crushed into bitter disillusion. Her husband has left her for Eve, rich and childless, and Hannah has been surviving by becoming a cleaner in London. Jinni is equally angry and bitter, and in the course of their journey the two women agree to murder each other's husbands.

As a child Gifty would ask her parents to tell the story of their journey from Ghana to Alabama, seeking escape in myths of heroism and romance. When her father and brother succumb to the hard reality of immigrant life in the American South, their family of four becomes two - and the life Gifty dreamed of slips away. Years later, desperate to understand the opioid addiction that destroyed her brother's life, she turns to science for answers. But when her mother comes to stay, Gifty soon learns that the roots of their tangled traumas reach farther than she ever thought. 

Nessa McCormack's marriage is coming back together again after her husband's affair. She is excited to be in charge of a retrospective art exhibit for one of Ireland's most beloved and enigmatic artists, the late sculptor Robert Locke. But the arrival of two outsiders imperils both her personal and professional worlds: a chance encounter with an old friend threatens to expose a betrayal Nessa thought she had long put behind her, and at work, an odd woman comes forward claiming to be the true creator of Robert Locke's most famous work, The Chalk Sculpture.

The Vignes twin sisters will always be identical. But after growing up together in a small, Southern black community and running away at age 16, it's not just the shape of their daily lives that is different as adults, it's everything: their families, their communities, their racial identities. Ten years later, one sister lives with her black daughter in the same Southern town she once tried to escape. The other secretly passes for white and her white husband knows nothing of her past.

It is 1950. In a devastating moment of clarity, Margery Benson abandons her dead-end job and advertises for an assistant to accompany her on an expedition. She is going to travel to the other side of the world to search for a beetle that may or may not exist. Enid Pretty, in her unlikely pink travel suit, is not the companion Margery had in mind. And yet together they will be drawn into an adventure that will exceed every expectation. They will risk everything, break all the rules and, at the top of a red mountain, discover their best selves.

One winter's afternoon on Hampstead Heath in 1980, Elise Morceau meets Constance Holden and quickly falls under her spell. Connie is bold and alluring, a successful writer whose novel is being turned into a major Hollywood film. Elise follows Connie to LA, a city of strange dreams and swimming pools and late-night gatherings of glamorous people. But whilst Connie thrives on the heat and electricity of this new world where everyone is reaching for the stars and no one is telling the truth, Elise finds herself floundering. 

When her ex calls to ask if she wants to be a mother, Reese finds herself intrigued. After being attacked in the street, Amy de-transitioned to become Ames, changed jobs and, thinking he was infertile, started an affair with his boss, Katrina. Now Katrina's pregnant. Could the three of them form an unconventional family - and raise the baby together? 

Irrepressible Betty Ramdin, her shy son Solo and their marvellous lodger, Mr Chetan, form an unconventional household, happy in their differences, as they build a home together. Home: the place where your navel string is buried, keeping these three safe from an increasingly dangerous world. Happy and loving they are, until the night when a glass of rum, a heart to heart and a terrible truth explodes the family unit, driving them apart.

Casey has ended up back in Massachusetts after a devastating love affair. Her one constant is the novel she has been writing for six years, but at 31 she is in debt and directionless, and feels too old to be that way - it’s strange, not be the youngest kind of adult anymore. Suddenly Casey finds herself at the point of a love triangle, torn between two very different relationships that promise two very different futures.

A woman known for her viral social media posts travels the world speaking to her adoring fans, her entire existence overwhelmed by the internet - or what she terms ‘the portal’. Are we in hell? the people of the portal ask themselves. Are we all just going to keep doing this until we die? Suddenly, two texts from her mother pierce the fray: "Something has gone wrong", and "How soon can you get here?" 

Arthur and Jake are the sons of a farmer in the mid-1930s, when life is tough and another world war is looming. Arthur is solid and dutiful, set to inherit the farm and his father's character; Jake is younger, attractive, mercurial and dangerous to know.