Secret room? I looked at every inch of that office and saw nothing out of place...fuck sakes. Gonna make me play this game more...It's actually a scene that triggers the first time you enter the secret room... and it's technically part of Linda's storyline, as you have to visit him at work (this'll unlock the location for further visits) to learn about his weekend trip.
The Twins story can start from here aswell... the visit in the secret room is currently not mandatory for any storyline though
I do, that's the thing. I have almost all the seceret cards without using a guide. Only missing 3 of the newest ones I think.It's a little bit of basic exploration. We know there are secret/hidden items in this game, so why wouldn't you spend a few extra moments mousing over an environment to see if there is anything interactable, and then clicking on those things when you find them?