They Came from Camp Murder Lake! is a They Came from Beyond the Grave! sourcebook for Players and Directors wanting to embrace the thrills and horrors of the 1970s and 1980s slasher movie genre, when arguably, it was at its peak. They Came from Came Murder Lake! Twist Cards include a number of locations, characters, and actions, allowing Directors (and players!) to introduce sudden twists and plot revelations to an ongoing game. - from the publisher's blurb