The four Bliss siblings have a loving but complicated bond, but when their mother, Dorothy, dies seemingly without a will, this relationship is put to the test. As the mourning siblings try to make sense of the situation, one of them is caught with a secret: before she died, Dorothy entrusted her favourite daughter with her will and a letter - and told her to destroy them both. But what Anna finds in the documents could change everything. Do the other siblings not deserve to know what it is about them that their mother was so desperate to hide?

As single mother Leah struggles to get her children ready one morning, the doorbell rings. Standing on the doorstep of their terraced house in Whitley Bay is a well-dressed stranger, Clio, who feels an emotional tie to the house that she can’t explain.

After discovering her mother’s secret life, Cara doesn’t have much faith in marriage. So when the love of her life, Simeon, proposes, she struggles to say "I do." She adores him, but why risk the perfect relationship by signing on a dotted line that could ruin everything? If her parents’ marriage taught her anything, it was that a gold ring doesn’t equal happiness, and she has no desire to follow in their dysfunctional footsteps.

The six D’Aplièse sisters have each been on their own incredible journey to discover their heritage, but they still have one question left unanswered: who and where is the seventh sister? They only have one clue - an image of a star-shaped emerald ring. The search to find the missing sister will take them across the globe - from New Zealand to Canada, England, France and Ireland - uniting them all in their mission to complete their family at last.

The chaotic but happy equilibrium of the Nightingale family is thrown into disarray when Cecily - whose children can't remember her ever being remotely spontaneous - disappears to a Greek island with no warning or explanation. Her reasons for doing something so out of character are a total mystery to her three daughters, high-powered executive Felicity, unfulfilled GP Julia and organised mother-of-five Lily.