A Knock at the Door

A gripping and unputdownable psychological suspense thriller from the Sunday Times bestselling author of A Neighbour’s Guide to Murder – brand-new for 2026!

They’ve finally got her back… but is it really her?They’ve finally got her back… but is it really her?

When three-year-old Tippi Macklin goes missing on a weekend break with her parents, her face appears in newspapers around the world, sparking endless debate and conspiracy theories. Wealthy and glamorous Jed and Gabby never give up hope that ‘Little Tippi’ will be found.

Eighteen years later, a young woman arrives at their door claiming to be their lost girl. She has a new name, a new history and some startling evidence to support her claim. Can she really be Tippi – or is she an imposter?

A DNA test will prove her identity one way or the other, but when the results come back, it seems the mystery has only just begun…

In her new novel, Sunday Times bestseller Louise Candlish takes readers on a white-knuckle ride of suspense and tension.

*****

‘Not only is Candlish a terrific storyteller, she has the gift of making you care about unlikable characters’ Guardian

‘The queen of the urban thriller returns with her winning blend of whodunit and thoroughly unreliable narrators’ Red

'I'm blown away by how good it is. A gripping tale of love, secrets and deception – it's the best psychological thriller I've read in a long time' Mark Edwards

‘A twisting, seductive, ingenious thriller’ Chris Whitaker

‘Tense, provocative and devastatingly powerful’ T. M. Logan

‘Candlish is a master of her craft’ Adele Parks

‘I couldn’t put it down’ Shari Lapena

‘A compelling, nerve-tingling treat’ Nicci French

‘As good as I hoped it would be… loved it’ Jane Fallon