In the Fall of Delta Green era (but played in Delta Green: The Role Playing Game) in August 1955, Working Group Icarus is sent to Washington state to investigate the suicide of a friendly, and the mysterious note left behind that people are watching him and that 'it's' sleeping right now and to come during the day...
Daniel: Special Agent William Patrusi, FBI
Ethan C: Special Operator Anthony Oliveras, Naval Intelligence
Ethan F: Jonathan Wainwright, Engineer
Joseph: Doctor Justine Richer, FBI