I saw it once and wanted to check it out again, but the name keeps slipping away. Might be on Netflix or Amazon Prime? It was something like “Monaco Mysteries” with that double M but it wasn’t Monaco. The usual odd pair of detectives. No idea if it’s even good, it’s just going to bug me until I take a look at it.
Murdoch Mysteries?
Murdoch Mysteries? It’s Canadian set (I think) in the late 19th century.
No, sorry. I should have eliminated that one in my OP. Thanks for the suggestion though.
Mallorca Files?
Miss Marple?
Yes! That was it. On the tip of my tongue. Thank you! And it didn’t have the double M either. 
I’m a dummy.
got something right for once.