Newcomer Monte Hale is tying to just get a job in western films when he meet young Danny McCoy and his sister Gloria. Danny is trying to get his horse, "Pardner" into films. Monte sings a song and "Pardner" does some tricks and a casting director notices. Monte gets a singing-cowboy role and the horse gets a bit, but there is an accidental explosion, engineered by western star Rod Mason, who is jealous of Monte, and the horse is badly scared and blows his lines.

A number of swamp land men have died by strangulation and the inhabitants believe that an innocent man they hanged is seeking revenge on all of the male descendants of those responsible for his death. Maria, granddaughter of the innocent ferryman, decides to operate the ferry service. Chris Sanders, a son of one of the men who did the hanging, and Maria fall in love. The "strangler" seizes Chris and Maria offers her life if Chris is spared.

Wishing to dispose of his wife, psychiatrist Dr. Elliott makes his patient Nina think that she suffers from a compulsion to kill. He drugs Nina, murders his wife and leaves evidence that points to Nina. The latter, pre-conditioned by Elliott, also thinks she is guilty.