From the back of the adventure:
"Deathwatch on the Bayou features two adventures for use with the CHILL role-playing game:
Inside you'll find maps, characters cards, and hours of suspenseful role-playing. Be sure to look for other fine products from Pacesetter."
RPGs: Manual of the Planes, 4 Chill adventures (in French), La Musique Adouci les Meurtres, Slaughter