A genius sleuth is threatened with jail time for solving a crime he could only have figured out if h had been a conspirator in said criminal activity, unless he was a psychic.
7 YEARS LATER
The sleuths fiancée, a girl cop, is all in a fluster that psychics are not real and she's been a dupe for his shenanigans for the last 7 YEARS
Psychics are not real!
How dumb was she?