The taxi in which Igor Gladyshev was traveling gets into an accident caused by a black jeep. With a traumatic brain injury, he is taken to the nearest hospital. After a couple of days, Igor already feels completely fine, but doctors strongly advise him to stay in the hospital for at least another week. And then, for no apparent reason, Igor’s roommate dies. And then, within a few days, three more hospital patients are sent to the next world. Gladyshev found the last of them with a broken head in the shower room. But the worst began after the investigator who arrived at the hospital directly told Igor that he suspected him of the strange deaths...