"Good Night, Dear Heart" is a 1990 episode of the American science fiction television series Quantum Leap. Lead character Sam Beckett "leaps" (travels through time) to 1957, into the body of a mortician investigating the death of a young West German immigrant woman. What at first appears to be a suicide by drowning turns out to be foul play. The episode, the 17th of season 2, was written by Paul Brown and directed by Christopher T. Welch. It aired originally on March 7, 1990.