Sam Rockwell and Saoirse Ronan gel really well together in this rather entertaining spoof of all thing Agatha Christie. The latter is the newbie constable "Stalker" - an enthusiastic young woman who is saddled on the experienced, gin-loving, inspector "Stoppard" when the pretty unlikeable film director "Köpernick" (Adrien Brody) is beaten to death with a sewing machine! It turns out that he had just been engaged to direct a big screen version of the legendary "Mousetrap" play that had just celebrated it's hundredth performance at London's Ambassador's Theatre. What now ensues is a really engag...