Our three hapless heroes - Igor, Artyom, and Sauna - return for the third lesson from St. Valentine. This time they must learn the true value of fatherhood, but this time the kids are grown up...

A Moscow family is trying to hide from the chaos that's dragging the whole world into the black whirlpool of the apocalypse. But barricades in the corridor and hazmat suits won't help. Absurd and nightmares penetrate their haven through disturbing dreams full of lust, death and blood. Very soon they realize that strange mystical rituals with animals in the apartment won't save them. They haven't noticed how they crossed the line of normality. Thay have long been inside the deadliest spider on earth. The Devil, Stalin, Bill Gates, Madonna, the Russian Soldier and the Coffin Man are already on the threshold of their gloomy home.