The Damned

A clan of vampires has just moved into the neighborhood, and college student Tom accidentally discovers his new neighbors' secret. When the vampires find out that Tom knows, he must do whatever he can to survive. His two roommates, a horror fan and a skeptic, join him with the help of a private investigator (Todd Bridges, Diff'rent Strokes, I Got Five On It), who's had a run-in with these bloodsuckers before... (imdb)