In this shockingly appealing horror comedy -- which opened this year's SXSW Film Festival in Austin -- schlubby, 30-something pizza delivery guy Otis Broth (Bostin Christopher) just wants to go to the prom; all he needs is a date. So the barrel-bellied suitor abducts pretty, prom queen-worthy teenager Riley Lawson (Fast Food Nation's Ashley Johnson) from her suburban home and shackles her in an underground dungeon decorated like a cheerleader's bedroom. Here, assuming the persona of the star quarterback, Otis will woo Riley until she plays along and accepts his invitation to "the big dance" at which time they will "go all the way." Riley knows that four previous girls never made it to Otis's totally rad '80s prom before he got frustrated and chopped them up, so she must be cunning to stay alive and protect her virginity. Riley's discouraged parents (Daniel Stern and Illeana Douglas), meanwhile, endure the ineffectual efforts of the police until they learn the identity of the serial killer themselves. Then, with their Xbox-conditioned son (Jared Kusnitz), the Lawsons arm themselves with home appliances and pay a visit to Otis's lair, with viciously twisted results. Johnson is outstanding as the feisty heroine and newcomer Christopher makes Otis an eerily romantic sex offender, but comedy stalwarts Stern and Douglas elevate the material into cult magic.