Sasha and his five friends went to rest “roughing it” on the Black Sea. Exotic and romantic! And at first everything went great—until the guys decided, as a group, to go to a restaurant. Only Nastya, a principled one, refused to go—she stayed behind in their tent camp to watch their things. When they returned, the friends realized that Nastya had vanished without a trace. And soon Sasha found her clothes on the shore, stained with blood…