Wealthy widow Helen Mercer hires a young woman, Gretchen Addison, to act as her personal assistant and companion. Unfortunately, Helen is a poor judge of character, as Gretchen is part of a murderous extortionist duo with her boyfriend, Jay. However, Gretchen has second thoughts when she develops genuine affection for Helen. When Gretchen informs Jay that she wants to call off their plot, he refuses and carries on with the plan. Now both Helen and Gretchen may be in grave danger.

In the late 19th century, on board a ship sailing from Jamaica to England, Olivia Harwood, a recent widow, takes on the task of caring for several malaria patients, including Mark Bellis, a mysterious and tormented painter.

A young woman new to the big city gets a job as a man's companion. What she doesn't know is that the man is a notorious gangster.

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.

Daffy Duck reads in the local newspaper that a millionaire seeks a loyal, entertaining, and trustworthy boon companion.