Dr Watson is the neurotic detective.
Inspector Lestrade pleads for Holmes help after a series of jewel robberies and theft of secret documents. Holmes turns Lestrade down and Dr Watson is aghast.
After watching Holmes acting suspiciously and associating himself with some known criminals. Dr Watson is convinced that Sherlock Holmes is a master criminal.
He even manages to get Inspector Lestrade to view Holmes with suspicion.
A frothy and lighthearted but silly episode. Watson dons some silly disguises that certainly does not fool Holmes.
No one considered that Sherlock Holmes might have his own motives to behave the way he does.