This game is so weird. I don't know why It has clues and totems you can collect. Right now Jessica could be in trouble but I'm walking around making sure I don't miss any of the collectables. In a real horror movie Mike would be running to make sure Jessica is safe.
sharePicking up the clue collectables actually changes the dialogue in the game: it's not just you who gets the info, but also the character who picks them up.
If you purposely miss all the collectables, the characters will act clueless about what is going on. If you pick up certain key clues some characters work out what's happening before the big reveals. Finding one particular clue will also determine if a character lives or dies.