Very well performed. This could be a movie theme. For a restless villain acting at night, doing mysterious things.
Nice idea of the dark camera setup, but if I may give you a tip as hobby filmer/photographer:
Don't make your room that dark. Your camera (or phone) struggles a lot to get the scene captured. It cramps up its ISO setting, resulting in a very noisy footage (video noise, those "moving" pixels). And it tries to get for each picture the exposure time as long as possible. Resulting in some motion blurr.
If you want to recreate this athmosphere, consider to use more light in total. Even if the footage is too bright for your liking, any video software should be able to darken it in post. But you get rid of the pixel noise and the motion blurr. Also consider to use a strong vignette effect in your video editor, leaving the center with light, but darken down the corners of the video.
If you remember the 1997 Titanic movie and its night shots outside when it sinks, you would be astonished how bright the scene actually was. You can always darken something down in post production. Just don't make the bright spots too bright to avoing bleeding out the highlights.