When Geraldine Bretherick and her 5-year-old daughter Lucy are found dead in the bathroom of their luxury home, the case divides new DS Charlie Zailer and her DC Simon Waterhouse. Is it a murder-suicide or something even more sinister, and how watertight is the alibi of the apparently distraught husband Mark? Meanwhile, when Sally Thorne, a young working mother with a husband and two small children hears of the deaths, she is deeply shocked. Months before she’d met a man called Mark Bretherick at a hotel and they had a brief but passionate affair. Now, against the advice of her best friend, Esther, Sally feels the need to get in touch with Mark again to offer her sympathy.
Olivia Williams
as Charlie Zailer
Darren Boyd
as Simon Waterhouse
Peter Wight
as Robbie Proust
Ralph Ineson
as Colin Sellars
Eva Birthistle
as Ruth Blacksmith
Theo James
as Aidan Harper
Emily Beecham
as Mary Trelease
Episode 1
Episode 2
Episode 3
Episode 4
