Spoiler Alert

1. Pick up the flashlight from the kitchen.
2. Find the package near the front door. Pick up the VHS tape.
3. Now with VHS tape in your inventory interact with the VHS player.
4. After the ghost spawns pick up the tape again.
5. Go to the kitchen and lock the door behind you.
6. Interact with the knobs on the gas stove.
7. Drop the tape on the flames by pressing 2
8. The ghost should die. Now go near the TV.
9. You should be teleported to a mysterious world. Walk forward to end the game.