Okay so I'm going to give all the information I possibly can, you may go ahead and ask for certain information and I'll try my best.
The game is a PC game. I'm not sure if consoles versions were available. The game is an old game. I can't say how old, but it's sort of old.
The game's camera is third person. There are switchable characters present. The game had subtitles (or an option for them), pretty sure.
The graphics and feel of the game were sort of dull. Like, think monotonous. It was supposed to be a sad game, and I could tell it had an actual story to it. The colours were all black-white-greyish, but I can't say there were no colours in the game at all. There was a narrator present, during the cutscenes.
All the information above is something I'm dead sure of. Now for the information I'm hazy on, but I'll try my best.
At the beginning of the game, the narrator says something very much along the lines of
"This is a sad story, with a sad ending and a sad beginning, with little bits of happiness in between."
Now that wasn't the exact line, but you get the idea. It was something like that.
The playable characters (I think there were 3, but I'm really not sure about this) were a girl, a boy and a baby (really not sure, but probably XD). I think we were in an orphanage of some sort... Anyway, there were rooms, hallways and all that. Pretty sure we had objectives and we had to do tasks. Different characters were able to achieve different tasks (for instance, the baby would be able to crawl through small places). Now anything I've told you there could be vague, I'm just giving you bits of what I remember. So if you find ANYTHING close to what I describe here, please tell me.
Oh, and at one point in the game there was a man (or an old guy) throwing stuff at us. Or something.
That's all I can give for now. I hope you can help me out here! Thanks.