Endless Night

All seem well and blessed... But hey the title card said this is an Agatha Christie adaptation, so something most go wrong. So finally tsomeone dies. And who's responsible is based on withholding information that's not in line with behavior the whole movie before. So it's based on a ridiculous twist. Which is a shame, cause the movie actually would been stronger and more suspenseful if we knew this information the whole time. It's Hitchcock’s famous adagium about shock vs suspense.