If it's your first time playing, only read the gameplay section and the walkthrough one if you're stuck and you have no idea where to look for the items. Then come back and find out about the other possible endings.

With the left click, you inspect/interact with an object and change location; with the right click, you go back after the selection.
The backpack in the upper left is used to remind you about the objects you must collect to complete the chapter.
The menu in the upper left is used to…you can guess it.
The game has autosave, so you can close it and continue it from the last position you visited.
If you want to make the game harder, go to options and uncheck the two boxes so you don't have the icons always on screen.

Part 1

1. Collect the items on the table in the room where your “guest” is enjoying her time.
   
2. Exit the basement by using the stairs

Part 2

1. Ignore the elevator in the hall and go left. In the living room, collect headsets, sunglasses and the elevator keys.
   
2. Go in her bedroom and inspect the wardrobe to find the green foulard
   
3. Take the elevator in the hall and go inspect the dumpster on the left to find the ring's case
   
4. Return to the hall and exit

Part 3

1. Dammit! Where has my new girlfriend gone? Continue after the staircase, turn left and turn on the light to rescue her and bring her back to safety (she got lost, so technically it's a rescue).
   
2. Choose to restrain her again with chains or ropes
   
3. Collect the items on the same table in the same room where the game has started
   
4. Exit the basement by using the stairs

Part 4

1. Go left and descend into the basement to find the dishwasher with the pink shirt
   
2. Go back and choose to go upstairs, then collect the little box in the mezzanine (look for the hidden ladder on the roof in the corridor), collect the camera in the living room, then choose how you want to deal with Sleeping Beauty (kill or spare him) and collect the sport watch in the bedroom.
   
3. Guess what? Leave the crime scene if you don't want to prepare some coffee for the incoming police officers

Ending

See section below.

Your actions will determine the newspapers' articles you will read between the chapters and in the end.

Good ending

1. DON'T kill her boyfriend in his bedroom (he took some pills so he won't wake up to attack you)
   
2. Choose to restrain her with chains, NOT with ropes.
   
3. Set her free in the end
   
4. https://www.youtube.com/watch?v=MHcYd5cCA7w

WWE ending

1. Kill or spare her boyfriend in his bedroom
   
2. Choose to restrain her with ropes, NOT with chains.
   
3. https://youtu.be/6vEt28Zivp0

Bad ending

1. Kill her boyfriend in the bedroom
   
2. Choose to restrain her with chains, NOT ropes.
   
3. Kill her in the end