Since those immemorial times, when the summer camp “Friendship” was called a pioneer camp, a plaster statue of a drummer stood there quietly and peacefully - and suddenly... The silence of the night is broken by a measured drum roll, and the forgotten statue walks around the camp, looks into the windows, stretches out his half-crumpled hands to the boys. And everyone who comes across the animated sculpture disappears without a trace. “Is it really possible that the same fate awaits us?!” - two inseparable friends think, cold with fear, and here a living drowned woman appears from the underwater depths...