The Monster Inside is a film noir style audio-visual novella, created by Random Seed Games. The game is worth a try, since it is free and it doesn't take more than 15 minute to finish the game. The premise is basic yet engaging, and I can't really expect a fully-fledged out story within 15 minutes. The story perhaps reflects how we all have a little monster inside of us, even though it is not explicitly stated or implied. Kudos to Random Seed Games.