Elizabeth Gatenby's mother is in the process of divorcing unsuspecting husband, Bruce Firman. In an elaborate plan to ensure her mother gets everything, Elizabeth hires her son and another young man to murder Bruce. Bruce Firman is found dead in his garage by soon to be ex-wife, Margaret Benesch, and her daughter, Elizabeth Gatenby. Suspicion immediately falls on Benesch — as the sole heir in Firman's will, she is entitled to receive everything, but produces a rock-solid alibi. When investigators dust Gatenby's rental car for fingerprints, one match those of a 17-year-old teenager. He said he'd been hired to kill Firman by Gatenby's son, Byron, who confesses that his mother planned it all.