Aspiring artist Ben Willis develops insomnia after a painful breakup with his girlfriend, Suzy. To take his mind off Suzy and to occupy the extra waking hours he has recently gained, Ben begins working at a local Sainsbury's supermarket, where he meets colourful co-workers. Among them is his colleague Sharon, with whom he soon develops a mutual crush. As his personal means to escape the boredom inherent in the night shift, Ben lets his imagination run wild. In particular, he imagines that he can stop time so that he can walk around in a world that is "frozen" like the pause of a film. He imagines female patrons of the supermarket stopped in time, allowing him to undress and draw them. Finally the ability to stop time becomes real.