The beautiful Katherine Gagnon is the victim of a cruel husband who, in a fit of madness, tried to kill her and her son. This is the opinion of police sniper Bobby Dodge, who had to shoot a madman. However, the police have another version: Katherine herself provoked the murder of her husband... Women are known for their deceit; besides, there are many dark pages in Katherine’s past. But is this fragile creature really capable of committing a cold-blooded crime? Bobby, who was accused of conspiring with Mrs. Gagnon, begins his own investigation to find out the truth, and most importantly, to get an answer to the question: who really is Katherine Gagnon - just an unhappy woman or a cruel, a calculating criminal who manipulates men?