You'll start the game exactly where you left off. This means you will have to deal with a monster who now possesses the body of a young woman (screen). You will have to wait for the monster to end its speech. Carnby will land on a lower level. This is where the first battle of the game is going to take place.
This fight may prove to be quite challenging to you, especially since you haven't encountered any monsters before, so you weren't able to practice how this all works. Once you've regained full control over your main character, consider picking up one of nearby items. You'll probably take a kettle or a hammer. Alternatively you could move to your left, because you would find a much better sword (screen).
Ignore the hint about the possibility of targeting your opponents. Wait for the monster to get here. As you've probably noticed, you can use the mouse to move the weapon in your hands. Try attacking the monster with a few swift blows (screen). Sadly, this fight isn't going to end with you knocking out your opponent. This is merely the beginning.
You will have to keep attacking your enemy until the monster is on the ground. This is an excellent opportunity to score a few additional shots (screen) by having your weapon over your head. Prevent the woman from getting up too many times, because you would have continue avoiding her attacks.
You will have to repeat all of these actions until fire has breached this room. Once this occurs, drop your current weapon and pick up one of the chairs. Approach the flames and light the chair on fire (screen). It shouldn't be a problem, however prevent your enemy from attacking you at the same time. Once you've lit the chair, find your opponent as quickly as possible.
You should be able to receive a hint on how to defeat your opponent - with fire. There is no other way and you will have to remember about this, because you'll encounter similar creatures later during the course of the game. Use the chair on the demon and enjoy when it bursts into flames (screen).
You won't have to perform any other activities here, so you may proceed towards the rope right away. The rope can be found near the area where you've started this battle. Use this object to get to an upper platform and you'll return to where this all has started. Watch a new cut-scene and make a few steps forward. Wait for the right moment to make a move. Start running and jump over a large gap (screen) without being hit by a swinging obstacle.
You may keep heading forward. Approach a large hole and wait for the camera to change its position. Lower yourself carefully, without making any unnecessary jumps. You should be able to find a new fire extinguisher here. Take this item, however don't use it on the flames. Instead, use the extinguisher to destroy an elevator door (screen). Enter the new area and you'll be rewarded with an interesting cut-scene. Here's where you'll meet your new companion - Sarah.