Ep. 5: William investigates Lucian's disappearance and Dudley's scheme involving Frida's death.

William discovers his student Lucian Atwood is missing after dating commoner waitress Frida. Dudley Bale advises ignoring the matter, but William learns Lucian proposed marriage and Frida became pregnant. After a man claims Lucian abandoned her, Frida drowns on a bridge. Dudley staged this as suicide while imprisoning Lucian in a brothel. William enlists Sebastian Moran and Fred Porlock. Fred rescues Lucian and positions him near the bridge. Dudley arrives to retrieve Lucian, but Frida emerges from the water, terrifying Dudley into confessing to drugging her. William reveals Frida is Fred in disguise. He exposes Dudley’s network of brothels and opium dens used to blackmail noble families. Sebastian shoots near Dudley’s feet, causing him to fall into the river and drown. Lucian has Frida buried in a noble cemetery.
Episodes
- Ep. 1 · William Moriarty investigates nobleman Lord Argleton for murdering seven boys in late 19th century London.
- Ep. 2 · The Scarlet Eyes Act 1
- Ep. 3 · Albert adopts fake William and Louis, leading to the real William's death and a mansion explosion.
- Ep. 4 · A Rare Breed
- Ep. 5 · William investigates Lucian's disappearance and Dudley's scheme involving Frida's death.
- Ep. 6 · Count Blitz Enders is framed for murder as William executes his societal reform plan.
- Ep. 7 · Moriarty and Blitz stage Thomas's death while William confronts Sherlock Holmes about the deception.
- Ep. 8 · Holmes and Watson investigate a murder while dealing with rent issues and police suspicion.
- Ep. 9 · Holmes deduces the killer's identity while William observes his methods closely.