Looking at killers who hid their instability, including an outgoing hiding dark secrets at home, and two old ladies behind a horrific murder.
| Title | Behind the Mask |
|---|---|
| Genres | Documentary |
| Release Date | 2009-09-10 |
| Episode Runtime | 00 Hours 42 Minutes |
| Season Number | 3 |
| Episode Number | 4 |
| Production Companies | Beyond Productions |
