Not sure what happened at the 2/3 mark when this went from being a VERY intense thriller/drama to a lighthearted slapstick romp at the end. Still very entertaining for what it was.

Lots of plot twists as the mute witness to a murder tries to survive.

Euro-based TV director Waller makes an impressive feature-film debut with his blackly comic, Moscow-lensed horror outing, a clever exercise somewhat reminiscent of early De Palma efforts like _Sisters_. Waller amply demonstrates his expertise in executing surgically precise, irony-edged shock set pieces that manage to keep the viewer simultaneously alert and amused. He yields the max from his exceedingly bleak locations, from the dilapidated film studio to the frigid Moscow streets

ok