"The Lake (1998)"
TV movie: Jackie Ivers (Bleeth) is a Los Angeles nurse who returns home to the small town of San Vicente to find that her friends and family have taken on bizarrely different personalities. Jackie notices that everyone who goes into the town's lake come out different. As the movie progresses, Jackie first-handedly witnesses what is happening to everyone around her as .......
Close Encounters of the Third Kind (1997)
I don't recall seeing this here yet? Classic!