ウェーバー ～Ｔｈｅ Ｓｅｅｋｅｒ ２～

A guy and his girlfriend got lost. Their new navigation software: Seeker got them to a mansion. There, they are invited to stay the night, and a few more days the next morning after meeting the lady owner. They explored the house a bit, finding some strange things. Soon, the girlfriend is missing. He looked for her and found more strange people of the house. He can decide to join their fun or not. This weird mansion is not for most people. This game has few choices, but will get you to one of the 7 endings depending on how nasty you are.

[From Li's Fun House]