Matt Thompson is bludgeoned to death with a pipe wrench and suspicion immediately falls on 59 year-old Phil Canby. The wrench belonged to Canby and he was there that evening fixing a leaky sink. The real problem however is that Canby is in love with Thompson's 19 year-old daughter, Sue, and they plan on getting married; everyone knew Matt Thompson was violently opposed to their relationship. Canby maintains his innocence throughout and the local Sheriff, who finds it very hard to believe that the mild mannered Canby would do such a thing, investigates. In the end, the true culprit is revealed.