13-year-old Adam Hansen (Matt O'Leary) and his best friend Duffy (Jake Epstein) have some tickets for the Headless Horseman concert, and his sister 16-year-old Chelsea (Laura Vandervoort) has a date with her dreamy boyfriend Peter. The only problem is, they are both grounded: Adam is punished because he did not do his homework, instead making up a story using an article from the magazine ''The Weekly Secret'', and Chelsea because she called Adam a dweeb, which their mother, Lynette (Caroline Rhea), happened to hear. Chelsea and Adam will do whatever it takes to get their mother out of the house, even if it includes a chance meeting with a very mysterious man named Dimitri (Charles Shaughnessy). Everything seems to go according to plan, until their 8-year-old little brother Taylor (Myles Jeffrey) realizes that Dimitri is a vampire.