Robert Smythe, a wealthy businessman, hears from a young woman called Jane Fisher that she is looking for a member of the MG club who got married twenty years earlier and lives in the town of Elmston, both of which apply to him. However, twenty years earlier he was involved in a hit and run when, driving his MG, he knocked over a little girl and kept driving without stopping. He is fearful of exposure and must keep the fact from his wife. At all costs. . .