Note: inspired by the board game franchise Clue as well as movie.

The Main Six are just going through life until strange stuff happens to them: blackmail, doubts, drug-use accusations, suspected of murder, belief of committing attempted murder, and suspicions of abuse. However, when they start hearing offers for help from a pony calling themselves 'Sir Jet', the Main Six travel to Canterlot where they suddenly are thrust into an investigation into each other's circumstances.
Now going by their new pseudonyms, the Main Six start their search for answers, only to be careful not to get hurt... or worse.