The body of playboy Peter Kilburn with a knife in his heart was found in a cheap motel room. The police suspect the young artist Laura Sutherland - she is the last person to see Peter alive. But Laura is innocent! To prove this and find out the whole truth about the murder, she enters the Kilburn house. Having met all its inhabitants, the girl discovers that each family member has their own secret, which Laura is trying to unravel. But what awaits the red-haired beauty in the old mansion - happiness or... death?