If movies from the '80s and '90s taught us anything, it's that sex could be dangerous. It was during those two decades that the erotic thriller genre hit its peak, offering movies that were seductive and thrilling in equal measure. When erotic thrillers go bad, they're a bust—trashy, shlocky messes. But when they're good, they're titillating and unnerving, picking up the flashes of films noir and offering a contemporary, hypersexual spin on the classic thriller. Here are some of the sexiest erotic thrillers ever made.