While exploring the woods with your best friend, you stumble upon a huge greenhouse nestled in the middle of a glen. It looks old. And haunted. Definitely haunted. You find the front door ajar like someone had left for just a moment. Naturally, your best friend issues a dare. Go inside. Just for a few minutes. If you do, they'll give you twenty bucks. If you don't, well, then you're a chicken. Not one to ever back down from a dare, you head inside. Only for the door to slam shut behind you. Your friend giggles hysterically from outside. When you try to open the door to give them a piece of your mind, you find it locked. The doorknob needs a key. Well, the key has to be in here somewhere, but though this greenhouse looks normal enough from the inside, you can hear rumbling growls echoing off the glass windowpanes. Something tells you this greenhouse is more dangerous than it seems, and the only way to get out is to venture deeper inside.