Peter Baldwin

Clark Gable plays Jim Gannon, a school-of-hard-knocks newspaperman who despises journalism schools, until he sees who's doing the teaching.

Marge Farrell is growing increasingly alarmed over the changes in her husband Bill, who's been acting strangely. And for good reason: Bill has been taken over by sinister aliens who have arrived on planet Earth to marry human women.

A lowlife thug, Ralph Anderson (Richard Widmark), returns home in an attempt to hide his mob boss from the law. Ralph’s father, who is the town’s sheriff, is killed by the mob boss’ minions while they await rescue. This galvanizes Ralph who then sets out to bring the mob boss and his men to justice.