When police arrest a man for questioning over his neighbour's murder, investigating cop Beatrice Kenosha (Jenny Agutter) enters a period of dark fascination with the mysterious stranger and his entangled, suppressed past - but only after he escapes her custody.

It emerges, when he's on the run, that suspect John Spears (Paul Conway) had been living as a recluse, shutting out the world and his tortured memories of a lost love.