After Sherlock tries to attack Smith with a scalpel , he is taken in as a patient to recuperate from drugs .
Sherlock comes to suspect Smith of being a serial killer , garnering media attention , which forces Sherlock and John to go with Smith to his hospital .
After Sherlock tries to attack Smith with a scalpel , John is taken in as a patient to recuperate from drugs .
Sherlock comes to suspect Smith of being a serial killer , garnering media attention , which forces Sherlock and John to go with Smith to his hospital .