When the naval construction designer Oliver Reed (Kent Smith) meets the Serbian Irena Dubrovna Reed (Simone Simon) in the zoo, he flirts with her and they sooner fall in love and marry each other. However, Irena is afraid of an ancient course of her town that women can not be touched by a man, otherwise she will transform in a panther, and the couple does not consummate their m...
Forced to travel with her boyfriend, Laine, she begins to experience premonitions associated with the urban myth of The Creeper. Laine believes that something supernatural has been summoned - and that she is at the center of it all.