Inspector Lewis investigates the death of a brilliant young maths student at Oxford University.
Charlie Cox
Sophie Winkleman
Michael Maloney
Lizzy McInnerny
Jemma Redgrave
Marc Elliott
Colin Starkey
Jack Ellis
Dennis Matsuki
Flora Spencer-Longhurst
Danny Webb
Rosalyn Wright
Alex Knight
Adam Smethurst
Michael Hobbs
Marc Small
Janet Maw