影片改编自理查德·奥斯曼的同名畅销小说，描述四位闲不下来的退休人士认真推敲谋杀悬案解闷，却碰上了真正的命案，侦探游戏突然变成惊悚现实，而他们还得找出凶手是谁。
Helen Mirren
Elizabeth
Pierce Brosnan
Ron
Ben Kingsley
Ibrahim
Celia Imrie
Joyce
David Tennant
Ian
Jonathan Pryce
Stephen
Naomi Ackie
Donna De Freitas
Daniel Mays
Chris Hudson
Henry Lloyd-Hughes
Bogdan
Richard E. Grant
Bobby Tanner
Tom Ellis
Jason
Geoff Bell
Tony Curran
Paul Freeman
John
Ingrid Oliver
Joanna
