The four-part thriller stars Tuppence Middleton (Downtown Abbey) and Martin Compston (Line of Duty) as estranged husband and wife Fi and Bram Lawson.

Based on Louise Candlish’s international best-selling novel, the series sees Fi arrive home one day to find strangers moving themselves into her house and that her husband has disappeared.

Deeply confused, she reflects upon the safe space where she and her family had built a life together, and begins to peel back the layers of her relationship.

Whitechapel’s Rupert Penry-Jones stars as Fi's new boyfriend, the enigmatic Toby, and also joining the cast are Weruche Opia (I May Destroy You) as Fi’s best friend and neighbour Merle, and Buket Komur (Honour) as Bram's new girlfriend, the mysterious and alluring Wendy.