The central character of the story is Innokenty Melnikov, whom his loved ones simply call Kesha. He has built a successful career as an architect, has been married three times, and despite the breakups, he still maintains friendly relationships with his ex-wives - Lena, Yulia, and Varvara. Kesha not only communicates with them but sometimes engages in intimate contact. However, this seemingly suitable symbiosis for everyone crumbles when Kesha meets his new love interest - Alla.