Step Down to Terror plot
"STEP BY STEP... he made a career out of love.... and murder!"
With the permission of Police Inspector Mike Randall, former psychopathic serial killer Johnny Williams Walters is allowed to return to his hometown in California to visit his mother Sarah and sister-in-law and widow Helen Walters. Both are unaware of his criminal past. Johnny hopes to settle in his native village and start a new life there. But Helen, whose suspicions are aroused by Randall's visit, discovers the truth about her beloved brother-in-law. Unconvinced about Johnny's good intentions, he plots a systematic murder of Helen.