An undercover agent (Tom Schilling) suffers from an inner conflict as he is supposed to betray his friend who is part of the Serbian sports betting mafia in Berlin.An undercover agent (Tom Schilling) suffers from an inner conflict as he is supposed to betray his friend who is part of the Serbian sports betting mafia in Berlin.An undercover agent (Tom Schilling) suffers from an inner conflict as he is supposed to betray his friend who is part of the Serbian sports betting mafia in Berlin.