Buffy gets down and dirty on her surprise 17th birthday bash when the celebration is rudely interrupted by the arrival of a most unwelcome gift. The package turns out to be a dismembered body part of The Judge, an ancient demon that when whole, has the power and strength to kill the slayer.
Angel, Buffy's boyfriend with a mysterious vampire past, plans to dispose of the body part before The Judge is reincarnated.

The battle against evil draws Buffy and Angel into a passionate embrace. Their happiness alters a Gypsy curse that threatens Angels soul, turning him against his love. Now , as Buffy prepares for a final showdown with the world's foremost evil , she must decide if she has the strength to destroy the one she loves to avenge her heart and save the world.