Murder in a Small Town is returning for a second season - but is every cast member coming back? Based on novels written by L.R. Wright, Murder in a Small Town follows a police chief named Karl (Rossif Sutherland) who - along with the help of others, including his girlfriend Cassandra (Kristin Kreuk) - investigates mysterious murders. The Fox show made a big effort when it came to balancing those star-studded guest appearances, the weekly mysteries and the romance. "It's funny because I always feel like the title gives it all away. But it's a murder mystery show.