When Sherlock investigates what appears to be a series of murders at a top Wall Street firm, he may himself fall afoul of a sociopathic slayer.

Refusing to collaborate with Dr. Zinberg on blood-transfusion research, an increasingly paranoid Thackery pushes himself to the limit, and beyond, in an effort to “solve the riddle” and beat his…

Thackery weighs performing surgery on a former flame, and orders Gallinger and Chickering to experiment on pigs. Barrow goes the extra yard to square a debt. After a bad day…

After uncovering the fact that an elderly woman’s tongue was cut out, Kay decides it is time to take a vacation. She returns home and while she is there she…

On the way home with his family, Danny hits a man with his car who is fleeing from a gunman, and his family gets caught in the crossfire when Danny…