Private detective Tatyana Ivanova arrives at the Adler boarding house “Azure” with a firm intention to forget about thieves and killers at least for a few days. On the very first walk along the lake shore, she is met with picturesque mountain peaks, fresh clean air—and… a dead woman lying in the clear water. The victim was Elmira, who had arrived at the boarding house with her businessman husband the previous evening. Mikhailov asked Ivanova to find the murderer of his wife, and the best of the private sleuths couldn’t refuse. So Tatyana, basically, got to rest—but the case seemed simple: the criminal was here, among the vacationers. That’s what Ivanova thought until a new disaster occurred—the husband of Elmira was killed. An unknown killer sent the couple to the other world almost in front of Tatyana’s eyes, and now it’s a matter of honor to identify him…