Ep 5. Lesser Evils

Sherlock Holmes and Joan Watson investigate a case involving a missing lab technician, Hannah Gregson, who was working on a top-secret project at a biochemical company. The investigation leads them to a suspect, Jeff Heinz, who denies any involvement in Hannah's disappearance. However, Sherlock finds several pieces of evidence that suggest Jeff is lying.

Meanwhile, Captain Gregson introduces Joan to his daughter, Hannah, who he hopes will inspire Joan to reconnect with her own estranged daughter. Joan spends time with Hannah and learns that the young woman was struggling with personal issues before her disappearance.

As Sherlock and Joan continue to piece together the clues surrounding Hannah's disappearance, they discover a web of secrets and lies involving the company, its employees, and Hannah herself. Along the way, they must navigate the complicated relationships between the suspects and uncover the motive behind the crime.

In the end, Sherlock and Joan must weigh the lesser of two evils in their pursuit of justice, leading to a thrilling conclusion that will leave viewers on the edge of their seats.