| The Man Who Knew | |
| Author: | Edgar Wallace |
| Country: | United Kingdom |
| Language: | English |
| Genre: | Thriller |
| Release Date: | 1918 |
| Media Type: | |
The Man Who Knew is a 1918 British thriller novel by Edgar Wallace. A detective investigates the death of a South Africa diamond magnate in London.
In 1961 it was turned into the film Partners in Crime, directed by Peter Duffell as part of a long-running series of Wallace films made at Merton Park Studios.[1]