The Infectious Madness of Doctor Dekker

A murdered therapist leaves behind a practice full of patients who may be traumatized, delusional, supernatural, or far more dangerous than they first appear. The Infectious Madness of Doctor Dekker is a murder mystery built around psychiatric interviews, filmed like an intimate British television drama with an unsettling Lovecraftian undercurrent. You take over Doctor Dekker’s sessions while investigating who killed him, balancing compassion, suspicion, and the growing realization that reality may not be stable. Its mood is deliberately claustrophobic: most of the action happens across a desk, but every conversation can expose another layer of dread.

Instead of selecting dialogue from a rigid wheel, you type questions, statements, names, or keywords and receive full-motion-video replies from the cast. The central loop involves listening for contradictions, following leads through patient histories, reviewing evidence, and deciding which questions are worth pursuing before the day ends. Suggested prompts help when you are stuck or playing without a keyboard, though the freedom to phrase your own inquiries is the feature that makes each investigation feel personal. Patients also ask for advice, and your responses influence their outcomes, while the wider case branches toward several endings. A murderer is randomly selected at the start, so knowing one solution does not automatically spoil a later playthrough.

What stands out is the sheer commitment to its interactive FMV format, with a huge catalogue of recorded reactions that sells the illusion of interrogating real people rather than navigating a conventional adventure-game script. The suspects and optional cases gradually weave mental illness, grief, guilt, occult horror, and darkly comic moments into a surprisingly dense web. Expect occasional trial-and-error as you learn which phrasing the system recognizes, but the built-in question history and replay tools soften that friction. Fans of Her Story, The Infectious Madness of Doctor Dekker’s spiritual cousin Contradiction, or slow-burn detective fiction will find plenty to analyze, while newcomers to FMV games get an accessible, unusually reactive mystery.