Bede desperately tries to complete the final drug deal as it falls apart around him. Gabriel has a final confrontation with Gatehouse.
Gabriel, prompted by Glickman, starts to uncover the truth about the Counterpoint operation. Bede's planned drug deal nears fruition, but he faces betrayal by his lieutenant.
Spinster Edith Presbury asks Holmes to investigate when she is frightened by a large hulking figure silhouetted in her bedroom window - a presence which causes her dog to howl. Holmes is convinced the prowler is something out of the ordinary, but Watson at first finds the case trivial.