 Dee Renaud is a girl playing the "Devil" in an amusement concession at a beach resort. Slick Glicks, the barker, promises the yokels that if they re able to catch the "Lady From Hell," she will reward them with a kiss. But when Glicks tries to go beyond kissing, Dee is rescued by Jim Coakley, son of a New England lighthouse keeper. She marries him out of gratitude and they move to his home on an island off the rockbound coast. Dee tries to convince Jim s salty old father, Pat, that she ll be a good and faithful wife. But she s a passionate woman with a bit of the devil in her, and she flirts with Jim s best friend Alf, who invites her to elope to Havana with him. When Pat is incapacitated, however, Dee loyally remains in the lighthouse to operate the beam and avert a shipwreck.