When a sickly Victorian woman dies suddenly, a postmortem reveals that her body contains a fatal dose of arsenic. Suspicion falls on her husband and her companion, who are lovers. Inspector Martin of Scotland Yard solves the mystery of her death... over a cup of tea.

The Angelmakers is a 2005 documentary that provides insight into the epidemic of arsenic murders by women, known as The Angel Makers of Nagyrév, in 1929. The film is shot on location in the rural Hungarian village of Nagyrév, alternating between portraits of the surrounding landscape and first-hand narrations by the elderly inhabitants.