Stalwart supporting actor Allyn Joslyn is afforded a rare leading role in the Columbia mystery meller Dangerous Blondes. Joslyn and Evelyn Keyes play Harry and Jane Craig, a road-company Nick and Nora Charles. A popular mystery writer, Harry occasionally indulges in amateur detective work, with wife Jane at his side; their friendly nemesis is Inspector Clinton (Frank Craven), who'd prefer that the Craigs would stay home and mind their own business. This proves impossible when Ralph McCormick (Edmund Lowe), the owner of a swank fashion studio, is accused of murdering his wife for the love of designer Julie Taylor (Anita Louise). Snooping around on their own, the Craigs find the real killer-and nearly wind up victims themselves.