Kraplenyy (2012)

Four friends - young scientists - Oleg Ignatyev, Aleksey Sorokin, Gennadiy Shagaev and Veronika come to rest in the Crimea. The guys are passionate about diving, and Veronika, who has long been in love with Oleg, is acutely experiencing betrayal: he unexpectedly introduces everyone to his bride Kseniya.