Chapter 1 - Loud Parties | Side cases Murdered: SS Guide

"Apartment 1A" side case is activated during the main mission "Get to the Fourth Floor Apartment". You can do it while standing in the building where you fought with your killer. To do this, enter the Laundry and talk to the girl. The laundry is located on the right side at the end of the hallway on the first floor, on the opposite from the building exit. You must find out where her body lies. Go back to the apartment where an elderly couple lives. To solve this investigation, you need to discover 5 clues. Possess the man sitting in front of the TV and select Influence. From the available choices, click on A Mysterious Murder. You get the clue: The Old Man's Secret.

In the bottom left corner there is the information how many clues you have discovered so far.

Possess the woman and influence her by selecting the Mysterious Murder. You get a hint: The Old Woman's Secret. Go to the room on the left from the front door and select Reveal and Inspect. You get the clue: Gardening Tools. Nearby on the stool there is a flower - select Reveal and Inspect. You will receive a clue: Note from a Neighbor. On the table in the northern part of the room there is a newspaper - select Reveal and Inspect. Clue: A newspaper clip - it is now yours. You have now all the clues. Use the option: Find the Answer. You have to choose three clues that you think are the most relevant. These are: The Old Man's Secret, The Old Woman's Secret, A Mysterious Murder. You can now go back to the ghost girl.

The girl was brutally murdered.

Talk to her to get "Missing Body" trophy. The ghost disappears and you complete the quest. This is the first completed side case.