When Anne (Synnøve Karlsen) and Patrick (Luke Norris) hail a black cab after a night out, their driver (Nick Frost) is chatty, even jovial, but in no mood to talk. In fact, the couple barely get along. That is, until they realize that the driver has no intention of taking them home. Locked in the cab with no way out, the driver transports the couple down a deserted and supposedly haunted stretch of road. But what is his purpose? Is he crazy or just plain evil? And why has he chosen Anne and Patrick as his victims?