Undercurrent (1946)
Overview
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.
Cast
Katharine Hepburn, Robert Taylor, Robert Mitchum, Edmund Gwenn, Marjorie Main, Jayne Meadows, Clinton Sundberg, Dan Tobin