Davidaviola, did the elder Mrs Haines asked you to recover something from her daughter in law ? and did you ask the daughter in law if you could have it ? I think this is the point where the younger Mrs Haines and her husband leave the appartment.
I'm stuck myself a bit later in the game, at the beginning of day two, same as frederic09 i guess. I have to investigate about Tiffany and Jamie. But only Joey can enter their rooms, and I don't see anything helpful to do with him. I have the names STP and Rachel in my Note Collectors, and I researched Tiffany Walters on the web, but I can't figure what I'm supposed to do next. Any help would be welcome !