British railway workers in Kenya are becoming the favorite snack of two man-eating lions. Head engineer Bob Hayward becomes obsessed with trying to kill the beasts before they maul everyone on his crew.

A young actress has retired from films to marry the son of a prominent and rich politician in New York City. The father objects strongly to the marriage. The actress is being blackmailed by a second-rate artist who has stolen some letters from her that could be misconstrued. During the payoff, she is knocked unconscious, and awakens to find herself involved in a murder and the police have her marked as the number-one suspect.