Watch 123Movies. A shot rings out in the quiet of space. Julie’s hand trembles as she grips her gun. A body lies dead on the floor, its appearance identical to her companion. Given no proof or reassurance that she shot the right person, Julie has to grapple with the possibility of having killed her best friend. Doppelgänger is a science fiction drama exploring the topic of grief and the human need for connection through the lens of a classic sci-fi trope.