Following

Following is a 1998 British independent neo-noir crime thriller film written, produced, directed, photographed, and edited by Christopher Nolan in his feature film directorial debut. Using a non-linear narrative, it tells the story of a young man who follows strangers around the streets of London and is drawn into a criminal underworld when he fails to keep his distance.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.