What kind of place is this? An anomalous zone, the lair of a werewolf, a haven for restless souls? Or just a secluded bay, perfect for training young swimmers? In the sports camp, everyone wanders secretly at night, everyone is hiding something... And one morning Marinka simply disappeared. They say she went home. But Tamara guesses: this is not true. After all, she found the diary of the missing girl...