Ann Lake arrives in London with her daughter Bunny to live with her brother Stephen. Ann leaves Bunny at a nursery school, but when she returns there is no sign of her child. Stephen, a journalist, questions all who might have seen Bunny. The man unearths several disturbing details about Ann.

Otto Preminger may have beaten Hitchcock at his own game with this calculated and unpredictable thriller, filled to the brim with anxiety and dread. An earthbound Keir Dullea (2001) provides one of the most inspired performances in ’60s cinema. Bonus: look out for British rock group The Zombies!