Doppelgänger. The Double is a film inspired by true stories of Polish People's Republic special agents who stole other people’s identities, building false relationships and their careers as spies.

Hans (Jakub Gierszał) and Jan Bitner (Tomasz Schuchardt) are separated by the Iron Curtain. Hans works in an office in Strasbourg and leads a quiet, almost monotonous life. Bitner is a Polish patriot, committed to the Solidarity Movement and the struggle to set Poland free. He lives with his family in Sopot. On the surface, their lives are completely different, but there is one small detail that has linked these lives forever.