The world has changed around 79-year-old librarian Millicent Carmichael, a.k.a. Missy. Though quick to admit that she often found her roles as a housewife and mother less than satisfying, Missy once led a bustling life driven by two children, an accomplished and celebrated husband, and a Classics degree from Cambridge. Now, her husband is gone, her daughter is estranged after a shattering argument, and her son has moved to his wife's native Australia, taking Missy's beloved only grandchild half-a-world away.

In a windswept British seaside town, single mum Alice Lake finds a man sitting on the beach outside her house. He has no name and no idea how he got there. Against her better judgment, she invites him inside. Meanwhile, in a suburb of London, 21-year-old Lily Monrose has been married for only three weeks. When her husband fails to come home from work one night, she is left alone in a place where she knows no one and with the police telling her that her husband never existed.

Meet Harold Fry, recently retired. He lives in a small English village with his wife, Maureen, who seems irritated by almost everything he does, even down to how he butters his toast. Little differentiates one day from the next. Then one morning the mail arrives, and within the stack of quotidian minutiae is a letter addressed to Harold in a shaky scrawl from a woman he hasn’t seen or heard from in twenty years. Queenie Hennessy is in hospice and is writing to say goodbye.

Sixty-nine-year-old Arthur Pepper lives a simple life. He gets out of bed at precisely 7:30 a.m., just as he did when his wife, Miriam, was alive. He dresses in the same gray slacks and mustard sweater-vest; waters his fern, Frederica; and heads out to his garden. But on the one-year anniversary of Miriam's death, something changes. Sorting through Miriam's possessions, Arthur finds an exquisite gold charm bracelet he's never seen before.

For Lucy Riddick, Venice has always been the dream destination, the ideal place to lose herself. And now she needs to do just that. The secret she's been keeping has finally caught up with her and Lucy needs to disappear - fast. But what if, when she sets foot in Venice, Lucy finds the one thing she has been running from?

When Sarah meets Eddie, they connect instantly and fall in love. To Sarah, it seems as though her life has finally begun. And it's mutual: It's as though Eddie has been waiting for her, too. Sarah has never been so certain of anything. So when Eddie leaves for a long-booked vacation and promises to call from the airport, she has no cause to doubt him. But he doesn't call. Sarah's friends tell her to forget about him, but she can't. She knows something's happened - there must be an explanation.

When she hears Niamh busking in the center of town, Becky is stunned by the intensity of her attraction to the itinerant young musician. The feeling is mutual. For Niamh, Becky has a familiar feel that reminds her of the home and family she has lost, and she quickly finds herself looking for ways to meet this intriguing young woman again.

Miranda's sister Kerri has a new boyfriend. He's a handsome charmer who seems to dote on Kerri. But Brendan isn't the man he says he is. Miranda should know. She broke off her own affair with him just a few weeks ago when she found him reading her diary.

A tragic family event reveals devastating news that rips apart Bella's comfortable existence. Embarking on a personal journey to uncover the truth, she faces a series of traumatic discoveries that take her to the ruggedly beautiful Cornish coast, where hidden truths, past betrayals and a 25-year-old mystery threaten not just her identity but her life.

When Cara stumbles across a stash of old postcards in the attic, their contents make her question everything she thought she knew. The story she pieces together is confusing and unsettling, and appears to have been patched over with lies. But who can tell her the truth? With her father sinking into Alzheimer’s and her brother reluctant to help, it seems Cara will never find the answers to her questions. One thing is clear, though: someone knows more than they’re letting on.

Frieda Klein is a solitary, incisive psychotherapist who spends her sleepless nights walking along the ancient rivers that have been forced underground in modern London. She believes that the world is a messy, uncontrollable place. The abduction of five-year-old Matthew Farraday provokes a national outcry and a desperate police hunt. And when his face is splashed over the newspapers, Frieda cannot ignore the coincidence: one of her patients has been having dreams in which he has a hunger for just such a child.

Real estate mogul Sean Jackson is throwing himself a splashy 50th birthday party, but trouble starts almost immediately: His ex-wife has sent his teenage daughters to the party without telling him; his current wife has fired the nanny; and he's finding it difficult to sneak away to his mistress. Then something truly terrible happens: one of his three-year-old twins goes missing. No trace of her is ever found. The attendees of the party, nicknamed the Jackson Associates by the press, become infamous overnight.

It seemed such an innocent deception. All Flora Waring had to do was play the part of Rose, her long-lost twin, for one weekend and meet the family of Rose’s fiancé. But when Flora is introduced to the Armstrong family, she realizes that she has inherited the secret scandal Rose created five years before...and left wounds that turn the man Flora loves against her.

Northern England 1979 - Social worker Elizabeth has finally plucked up the courage to end 14 years of unhappy marriage. Lost and lonely, she buries herself in work to keep her emptiness at bay. Then an unexpected phone call brings troubled teenager Jan to her door and Elizabeth shocks her friends and family by taking the traumatized young woman into her home as a lodger.

In 1964, Maggie wakes to find herself in a mental asylum, with no idea who she is or how she got there. Remnants of memories swirl in her mind - a familiar song, a storm, a moment of violence. Slowly, she begins to piece together the past and the events which brought her to this point.