Stan Helsing (Steve Howey) is a video store clerk with one thing on his mind - the big Halloween party going on later on in the evening. The only thing standing in his way of the party is one last video delivery. Along with a few of his friends, including best friend Teddy (Kenan Thompson), he ventures out to make the delivery. As odd mishaps begin to occur, Stan finds himself at the Stormy Night Estates, where he learns that he is actually a descendant of monster hunter Van Helsing. Stan is faced with a number of evil monsters, and he has to find a way to fight them off.