The Whole Truth (1958 film)

The Whole Truth is a 1958 British thriller film directed by John Guillermin and starring Stewart Granger, George Sanders, Donna Reed and Peter Dyneley.

Max comes home with a blood stain on his shirt cuff. A visit follows from an Inspector Carliss of Scotland Yard, who says Ginas body has just been found, stabbed to death.Rushing to the house where he and Gina used to secretly meet, Max gathers up possessions hes left behind. A neighbor spots his car. Upon returning home, to a party Carol is hosting, Max is astounded to find Gina alive and well among the guests. ........

Source: Wikipedia