Watch The Secret Adversary

In this Agatha Christie classic, two old friends who are short on money decide to become investigators for hire. But what starts off as a straightforward gig quickly spirals into a dangerous situation.

The Secret Adversary is a 1983 comedy with a runtime of 1 hour and 54 minutes. It has received mostly positive reviews from critics and viewers, who have given it an IMDb score of 7.2.