I'm excited about this game, mainly because I am old enough to remember stuff like Night Trap for Sega-CD. Here, don't bother, I looked it up for you. Damn kids, and your music...
Described as a "Lovecraftian murder mystery", The Infectious Madness Of Dr. Dekker is a full motion video (FMV) title from D'Avekki Studios, and looks sort of like Dexter meets In Treatment. You assume the role of a psychologist who takes over the practice (and patients) of the titular Doctor Dekker, who has been recently murdered. Clues point to the serious possibility that it was one of his patients, the same people you are now responsible for treating. You have to tread lightly, and be as careful of what you do ask as what you don't. If you're not, you might end up on a slab right next to your predecessor. Well, not right next to him. I'm sure they've buried him by now, or transferred him to a morgue, or wherever...but you get what I mean.
D'Avekki is really going all out on this one; there are no text "choices", you type your own questions via a text window that you pull from your own brain. There are 5 acts, multiple patients, and over 1,600 scripted responses to your questions, the scenes are all rendered in HD, and there are also clues that must be discovered and analyzed to better direct your inquiries. To combat spoilers, the killer is randomly selected at the beginning of the adventure, so it's a new mystery every time, and you can get multiple endings.
Watch the trailer, it starts slow and then gets eerie pretty quickly. After you watch it, grab your copy on Steam for under ten bucks, get your thinking cap on and solve a murder. Do it.