A recently married woman (Britt Ekland) starts to suspect her new step son (Mark Lester) killed his mother and now has designs on her. The film revolves around the mind games between Mark Lester and Britt Ekland in part provoked by the child's sexual inclinations. Not great acting from Brit Ekland but engrossing and disturbing.
3/5 
Mark Lester
Britt Ekland
Lilli Palmer
Harry Andrews