Clay (Andrew McCarthy) comes home to Los Angeles after his first semester of college and encounters some disturbing developments. His former lover, burgeoning model Blair (Jami Gertz), has begun to abuse cocaine. But her addiction pales in comparison to the drug dependency of her new boyfriend, Julian (Robert Downey Jr.), who's also Clay's childhood buddy. Clay tries to help them get sober, but the process is complicated by Rip (James Spader), a callous dealer Julian is indebted to.