After a wealthy philanthropist (Anna Chancellor) is murdered at Christmas in 1954, one of her five adopted children is convicted of the crime. But when an alibi witness turns up 18 months later, the family is torn by secrets and suspicion. Starring Bill Nighy, Matthew Goode, Alice Eve, and Eleanor Tomlinson, this is "pure Agatha Christie...an intriguing update on an old classic" (LA Times).