The passengers and crew of a boat on a summer cruise in the Caribbean stray into the famed Bermuda Triangle and mysterious things start happening.

Influenced by concerns about overpopulation, the counterculture of the 1960s and the societal effects of television, the play depicts a world of the future where a small elite control the media, keeping the lower classes docile by serving them an endless diet of lowest common denominator programmes and pornography. The play concentrates on an idea the programme controllers have for a new programme which will follow the trials and tribulations of a group of people left to fend for themselves on a remote island. In this respect, the play is often cited as having anticipated the craze for reality television.

A 30-year-old man, who has been in a coma since birth, is finally restored to consciousness by a breakthrough brain operation. Although physically an adult, the man is "reborn" in the eye of an infant; the doctors caring for him must teach him to walk, talk and prepare for life in the outside world. Tension builds as he escapes from the hospital, wanders among people who do not realize his identity, and is hunted by the police.

Prudence Hardcastle is on the pill. So is her sister-in-law, but someone has been swapping aspirin for their pills. Is it the teenage niece, the maid, the chauffeur, a lover, Prudence's husband Gerald, or all of the above?