After a rapid engagement, a dowdy daughter of a chemist weds an industrialist, knowing little of his family or past. He transforms her into an elegant society wife, but becomes enraged whenever she asks about Michael, his mysterious long-lost brother.
Undercurrent is a 1946 American film noir drama directed by Vincente Minnelli and starring Katharine Hepburn, Robert Taylor, and Robert Mitchum. The screenplay was written by Edward Chodorov, based on the story "You Were There'" by Thelma Strabel, and allegedly contained uncredited contributions from Marguerite Roberts.
