David Lloyd

Bill, an idle, unemployed aspiring writer, walks the crowded streets of London following randomly chosen strangers, a seemingly innocent entertainment that becomes dangerous when he crosses paths with a mysterious character.

There's something in his apartment. A man looking for an insect-like thing devolves into a bout of insanity as his subconscious mind begins to strangle his waking one.

A man breaks into a flat, startling the occupant. They argue about the new girlfriend of the 'burglar', who's come to get her stuff. Then a third man bursts out of the cupboard...