Living on her family’s idyllic lakeside estate in Cornwall, England, Alice Edevane is a bright, inquisitive and precociously talented 16-year-old who loves to write stories. One midsummer’s eve, after a beautiful party drawing hundreds of guests to the estate has ended, the Edevanes discover that their youngest child, 11-month-old Theo, has vanished without a trace. He is never found, and the family is torn apart and the house abandoned.

Thirty-eight year old Cassandra is lost, alone, and grieving. Her much loved grandmother, Nell, has just died and Cassandra, her life already shaken by a tragic accident 10 years ago, feels like she has lost everything known and dear to her.

In 1903, fishermen find a wrecked boat containing a woman, who has been badly beaten, and a young girl. In 1993, All Hallows is now a boarding school. Following his mother’s death and his father’s hasty remarriage, Lewis Tyler is banished to Dartmoor, stripped of his fashionable clothes, shorn of his long hair and left feeling more alone than ever. There he meets Isak, another lost soul, and whilst refurbishment of the dormitories is taking place, the boys are marooned up in the attic, in an old wing of the school.

Posy Montague is approaching her 70th birthday. Still living in her beautiful family home, Admiral House, set in the glorious Suffolk countryside where she spent her own idyllic childhood catching butterflies with her beloved father, and raised her own children, Posy knows she must make an agonising decision. The house is crumbling around her, and Posy knows the time has come to sell it. Then a face appears from the past - Freddie, her first love, who abandoned her and left her heartbroken 50 years ago. 

1830. After a violent storm, a woman is found alone, naked and near death, on the Northumberland moors. She has no memory of who she is or how she got there. But she can remember how to help a woman in labour and how to expertly dress a wound and can speak fluent French. With the odds against her, a penniless single woman, she starts to build her life from scratch, using her skills to help other women around her. She finds a happy place in the world. Until tragedy strikes, and she must run for her life.

The sudden death of a pupil in Fleat House at St Stephen’s—a small private boarding school in deepest Norfolk—is a shocking event that the headmaster is very keen to call a tragic accident. But the local police cannot rule out foul play and the case prompts the return of high-flying Detective Inspector Jazmine ‘Jazz’ Hunter to the force. Jazz has her own private reasons for stepping away from her police career in London, and reluctantly agrees to front the investigation as a favour to her old boss.

1995, London. When Sir James Harrison, one the greatest actors of his generation, passes away at the age of 95 he leaves behind not just a heartbroken family but also a secret so shocking, so devastating that it could rock the English establishment to its core. Joanna Haslam is an ambitious young journalist assigned to cover the legendary actor's funeral. The great and the good of the celebrity world are there. But Joanna stumbles on something dark beneath the glamour: the mention of a letter James Harrison has left behind, the contents of which others have been desperate to conceal for over 70 years. 

For 12-year-old Ottilie Finch, London is an exciting playground to explore. Her family have recently arrived in Hampstead from Durham, under a cloud of scandal that Otty is blissfully unaware of. The only shadow over her days is her mother’s mysterious illness, which keeps her to her room. When young local girl Mabs is offered the chance to become Mrs Finch’s companion, it saves her from a desperate life on the canals. Little does she know that all is not as picture-perfect as it seems.

A brutal double murder on a Norfolk beach horrifies the town of Cromer. The way the victims died is chilling and so Norfolk’s Major Investigation Team task DS Ashley Knight to manage the case. It soon becomes clear that the murders were carefully planned and the finger of suspicion points to an organised crime gang, but as the evidence mounts, a far more sinister theory emerges.

Hannah and Stef have always been there for each other. Growing up in a loving family, they're stunned to discover their mother adopted out a child before their parents met. When Alex walks into their lives, the sisters are seduced by his charm, wealth and social status. But as they rush to make up for lost time, it soon becomes apparent their half-brother's agenda is more complicated and sinister than the Fidler sisters could have imagined.