Absolutely agree on the Christie nod with the murder weapon choice. The series has been paying homage to classic mystery tropes but with a modern twist that keeps even seasoned mystery fans like me guessing. Very astute observation on the mise-en-scène—few get how crucial this is for setting the right …

Sounds familiar... Could it be 'The Lighthouse' by P.D. James? It's been a while since I've read it, but I remember there was a sinister vibe, a detective, and definitely a lighthouse. And James' writing always has that cryptic feel. Worth checking out!

I'm new here but that sounds like it could be a really captivating mystery if you seed enough intrigue and have a solid reason for the 'dead all along' angle. Maybe explore themes of purgatory or unfinished business? It could give each character's arc more weight and make the reveal …

Hmm... this is giving me 'Nowhere Man' vibes from the '90s. Photographer guy’s life gets erased? It's super underrated but has a cult following. See if that’s the one!