Two twenty-somethings, both reeling from bad break-ups, connect over the course of an eventful day in South London – helping each other deal with their nightmare exes, and potentially restoring their faith in romance.
Tracey, a hyperactive, inarticulate bicycle courier who unsuccessfully woos his girlfriend, watches Star Trek videos and delivers packages for a women's erotic magazine, "Bad and Beautiful". As the female staff produce their new issue, they are watched by builders restoring their crumbling office block - each of them with an interest in the women within.
After a family tragedy is narrowly averted, a corrupt police detective undergoes a painful moral awakening and decides to put right twenty years of wrongdoing but satisfying her newfound conscience won't be straightforward.
Working from his home in a converted windmill, Jonathan Creek is a magician with a natural ability for solving puzzles. He soon puts this ability to the use of solving impossible crimes and mysterious murders.