Neukölln, a trendy district in Berlin, where cheap apartments are hard to find. To get a flat, one needs salary proof and guarantees. Thies knows the game. He works for a real estate management and strictly follows the rules. Until he meets Bruno and Sonia, two unequal siblings. He gets them a free apartment underhand – and begins an affair with Bruno. Step by step, he delves deeper into the mystery of the brother and his sister.