An anonymous note claiming the innocence of murder suspect Mary Thompson on trial after Julia's crucially damning forensic psychiatric testimony destining her for asylum incarceration, Murdoch's bride and he concentrate more on the urgent case the their wedding, which Inspector Thomas Brackenreid's wife Margereth fuzzes about to his desperation, sort of a makeover for their own shabby nuptials. The detectives focus an victim Percival Thompson's business partner, Alexander Wainwright, who inherits his whole share in the firm, then his apparent alibi hinging on doubtful identities, fully understood only while the happy couple is already at the altar.
—KGF Vissers