If you don't see who the murderer is a mile away you have no business watching murder mysteries. It's serial killer 101. I'm surprised so many people marked this episode so high considering the predictability of it obviously being the psychiatrist. The way he talks about the mind of the serial killer how even a newbie to the genre can't spot it I don't understand. It's not the first time such plot line has been used. Using this in only the third episode of the series is very frustrating at least to me yelling at the tv Morse - you're not that smart! Of course it is well acted and well paced but too obvious for me.