Impulse (1984)

Impulse is an overlooked 80s sci-fi thriller about a town that descends into chaos after its milk supply is poisoned. It happens! Stuart (Tim Matheson) and his girlfriend Jennifer (Meg Tilly) visit a small rural town to spend time with Jennifer's mother, who is in the hospital sick. Stuart immediately drinks the town's milk while Jennifer abstains. She stays normal while Stuart begins to act nuts. He's not the only one! Apparently no one in town suffers from lactose intolerance, because everyone is infected by the tainted milk, and as such they get super violent and kill each other. Stuart discovers the truth when he comes across the milk factory. He warns Jennifer that her life is in danger, and she narrowly escapes all of the chaos after some close encounters with the infected. We're milking this movie for all it's worth with Tim Matheson's nude scene! Check out his super 80s tan line and naturally formed tush. It looks like milk really does do a body good!