Identify Trying to find a game to check if it's abandoned

[blanlasomebody]

I have tried to find it but my memories are too vague. It was a game about a young guy with a big family/roomates of only girls living in one appartement and you couldn't get out of the building, doing quest for them. There's also a plot about your dad being a detective and your character trying to find how he died.

Thanks for any help.