After revealing himself as a fraud. Death and Other Details along with Rufus does some actual investigating.
It does this by putting Imogene at the centre of the investigation. Her memories unlocking as she walks through with Rufus just what did her mother do on the days leading to her death.
That part was stylishly shot. It also allowed Imogene to link some characters from the past to the present. She can open her mind as to what her mother might have been up to.
It might just be she had dirt on the Colliers. Maybe she was panning to be a whistleblower.
Viktor Sams is there in the shadows. Did Imogene see him or block it out.
Of course the lingering question for me was, but Rufus is meant to be a fraud. How has he managed to do detective work all this time or is it a ruse?
Llewellyn Mathers might have cottoned on to this. Maybe he had suspicions about Rufus all along.