A group of young people goes to relax on a wild beach. On the way they meet a Romani woman who advises them to give up the trip, but no one takes her words seriously. Drunken youth knows no fear or doubts! Warm sea, picturesque deserted shore, majestic mountains—what could be wrong in this paradise? Nothing. Except that an old legend says that a long time ago a girl drowned in the local swamp, and that fresh blood can bring her back to life. And then one of the boys remembers that he accidentally dropped a handkerchief into that very swamp—the one he used to stop the bleeding from his cut hand…