Four friends, annoyed at how almost everyone else they know is having sex but them, agree to do what they can to help each other lose their virginity before the end of the summer. Most of their opportunities are foiled by their inexperience and bad planning. Michael, the most sensible boy of the foursome, really just wants to stay with his long-time girlfriend and take their relationship to an intimate level, but after putting him off for six months he grows impatient and splits up with her to seek his fortune elsewhere.

Billy Robinson has become the hottest hot-rodder on the professional motorcycle-racing circuit. But when he returns in triumph to his hometown to bask in all the adulation, he also skids into some pretty rank jealousy from envious motorcycling wanna-bes. And when a local race is organized, Billy must shift gears completely and compete against his best friend, Rick, for the top prize.

High-priced prostitutes are being systematically murdered, their corpses mutilated, and a bizarre South American symbol painted in blood is found at the scene. The cop investigating is out to solve the crime before his ex wife, a reporter, becomes the next victim.