River of Bony Shores

Simple city guy Boris could not imagine what would come of what seemed to be an ordinary teenage prank: during a trip with friends on a yacht, he jokingly climbs onto a barge passing by. However, soon the guy finds... himself not laughing. Boris doesn't manage to get back to the yacht, and the barge takes him to an old village, where strange things begin to happen to him from the moment of arrival. The local girl Nina helps Boris make sense of the mysterious events. She tells him that according to old beliefs, an evil spirit resides in the river near the village, which takes the lives of local residents, leaving only bones and skulls on the shore, which is why it was named the Bony one.
 
Will the heroes be able to deal with the dark force? And will they become victims of the Bony River themselves?