THEY SWAPPED WIVES. Anton and Polina have been married for a long time and run a joint business — a confectionery factory. Everything falls apart when, during the celebration of their 10th wedding anniversary, Polina catches her husband in the arms of his former classmate — a massage therapist named Svetlana. Polina cannot forgive the betrayal and files for divorce. Anton soon marries Svetlana, while Polina begins a romance with a minibus driver named Sergey — who turns out to be Svetlana’s deceived husband. However, the former spouses have no idea that the "swap" that occurred in their lives is no coincidence…