Semyon is disturbed. He has woken up in the living room with blood on his shirt, an angry wife and no idea where he was the night before. When this happens several mornings in a row, he realises he needs to investigate.
After his friend Volodka follows him one night, they discover he's meeting a tall, blonde woman and accompanying her to her apartment. In the daytime he doesn't know this woman or where her apartment is and, odder yet, someone is watching Volodka watching Semyon.
Meanwhile, there are some strange goings-on in Kiev - an unemployed sniifer-dog handler makes a dangerous discovery, a single mother is providing breast milk for an unusual recipient and a vengeful cat is on the loose...