Love Potion No. 9

A brilliant but lonely biochemist (Tate Donovan) gets a mysterious potion from a gypsy who guarantees it will turn his life around. After showing it to his co-worker (Sandra Bullock), a shy animal psychobiologist, they achieve amazing amorous results in a chimpanzee experiment. Now the only way to see if it works on humans is to test it on themselves. (official distributor synopsis)