Watch Hummer (2003) Official Trailer

As Casey frantically prepares for a dinner party, she regales her friend Bee with tales of Sam, the new girl she is dating. Sam is great in every way, except for one maddening thing—she hums! No tune, just an absent-minded hum. Later, as the dinner party unfolds, Casey’s tunnel vision becomes obvious, only to be thrown off by a surprise encounter in the bathroom.