When a quietly hollowed-out office worker encounters a strange new colleague who seems to know him better than he knows himself, he doesn't realise that every friendly exchange is costing him a piece of who he actually is until there's nothing left to notice.

Plagued by paranoia, a man comes face-to-face with his doppelgänger. Fearing an unseen plot against his life, he spirals into a dangerous game of identity, risking everything to protect his girlfriend - even as he begins to question who he really is.