Early Riser

Every winter, the human population hibernates. During those four months, the nation is a snow-draped landscape devoid of human activity. Well, not quite. Your name is Charlie Worthing and it's your first season with the Winter Consuls, the mildly unhinged misfits who ensure the safe passage of the sleeping masses. You are investigating an outbreak of viral dreams which you dismiss as a quirky artefact borne of the sleeping mind.
And then the dreams start killing people... Teasing truth from Winter is never easy. You have to avoid the Villains' penchant for murder, kidnapping and stamp collecting, and ensure you aren't eaten by Nightwalkers. But so long as you remember to wrap up warmly, you'll be fine.