When a man has murder on his mind be sure you don't fall into a... Deathtrap.

Other lines from this film

• The trap is set... For a wickedly funny who'll-do-it.featured
• Join us for an evening of lively fun... and deadly games.
• A wickedly amusing who'll do it.

Similar meaning

Lines whose meaning sits closest, by embedding similarity.

Same sentence pattern

Shape: when a … has … on his … be … you don't … into a …