Love the premise: a serial killer who has to live through being the victim before their soul can move on is a really compelling reversal of the usual 'be the monster' idea. Joining with only two days left and still getting a playable demo out is impressive, and I hope you get to add the extra levels and sound you mentioned.
Would you mind trying my game too? Forever is a cute dating app on a phone in a dark bedroom, and the ♥ meter isn't measuring what it says it is. It's about 10 minutes, mouse or touch only, and every rating really helps!