I'm usually horrible at these stressful food managing games and while I had tense moments, like being unprepared on the second day or being out of reserved food during the busy hours, I was able to get through it. I don't believe I could manage it without being able to prep and reserve the meals beforehand. The gameplay feels very nice and polished, same with the beautiful pixel art.
I didn't quite understand the murder-part. The way I found it felt natural yet random, killed someone in the bathroom with the knife because I couldn't find any other use for the bathroom and knife. Nothing happend after I murdered 4 customers, was something going to happend or did I miss something? Overall I found the serial killer aspect to be a fun and unique addition to the already stressful cooking environment. Amazing job!