So when I was younger, around 8 years ago, I remember playing this point and click hidden object horror Big Fish game, but basically there were a handful of ghosts you had to help “release” (?) and the whole fashion of the game was from the 1950s (think grease) and i remember particularly during the game when you took too long or were idling, the ghosts room you were looking in would pop up on the screen.
The characters in the game were cartoonish, yet realistic, and all the colors were bright from what I can remember. You aren’t a ghost yourself if I recall correctly, and each ghost had a room of their own coordinating to their style, i.e. the greaser had a garage, the opera singer/actor had a dressing room, etc.