Hi! Could you please recommend a mystery series with these plot points (* = most important to include):
- This is not a requirement but an immersive environment (like A Murderous Affair in Horizon Tower & basically all the Light on series) & investigation set primarily in one key place like one apartment building, train, school etc is a huge bonus
- Not too much time is spent on background of investigators, much more time spent fleshing out victims & suspects***
- Modern-ish aka like set in 1950s & onwards, not historical unless it’s exceptional, but preference for setting between 1950-2010
- Person responsible for crime remains a mystery to viewers until end of series/episode, not revealed early on BUT definitely revealed
- All suspects introduced during the investigation, person responsible for crime is not someone out of left field or introduced only at end**
- A monster-of-the-week setup (new mystery with each episode) OR one/a few cases that are good enough to remain interesting for the amount of episodes they take to solve*