Wiktionary
supersleuth
n. Any famous, successful detective, especially a fictitious one
Wikipedia
Supersleuth
Supersleuth is a 1984 Australian TV movie about a group of people gathered in a secluded house murdered by a mysterious killer.
Usage examples of "supersleuth".
I always envied the supersleuths in films who put their hands on the right papers in the first ten seconds and, this time, I didn't know if the right paper even existed.