A widow named Lisa (Ida Galli) inherits a small fortune when her husband dies in a freak jet crash. However, before she can escape to a retreat with her secret lover, the widow is brutally slashed to death and the money stolen. Now an insurance investigator (George Hilton) and his journalist love interest must figure out exactly who is murdering anyone involved with the late widow, and why. A strange gold cufflink holds the key to the mystery.