A story of two Russian boys whose father suddenly returns home after a 12-year absence. He takes the boys on a holiday to a remote island on a lake that turns into a test of manhood of almost mythic proportions.

In a Russian coastal town, Kolya is forced to fight the corrupt mayor when he is told that his house will be demolished. He recruits a lawyer friend to help, but the man's arrival brings further misfortune for Kolya and his family.

Elena is a woman of a certain age, living in a chic Moscow apartment with her wealthy businessman husband Vladimir. While Vladimir is estranged from his daughter, he does not mask his contempt for Elena's own child, who seems to be in constant need of financial assistance. When Vladimir suddenly falls ill and his volatile, nihilistic d...

After receiving an unexpected visit from his mysteriously injured brother Mark, Alex decides to take his family back to the country home of his childhood, but once there, Alex's wife Vera confesses that she is pregnant again and that the child is not his. Agony ensues as Alex attempts to figure out how best to react.

A very close-to-life story showing that some closed doors hide much bigger mysteries than you can imagine and it's better to leave them unopened. "Mystery" is the part of Experiment 5IVE.