The 12-year-old-looking Dr. Reid (Matthew Gubler) is out in Hollywood with Gideon on a guest-speaking assignment. While there, he is introduced to a pretty soap opera TV actress. While on the way back to the airport, a crime takes place and the local cop asks Gideon and Spencer if they have time to look at the scene, since it's "on the way."
They discover this is the third crime with the same MO. They are asked to stay and investigate, so they do, and fly in the supporting cast. Then, an agent comes in to tell police about a threatening note his client received: the actress "Lila Archer" (Amber Heard) Dr. Reid met, and is obviously smitten with, which is understandable for this poor nerd.
Anyway, two actresses and a producer have been killed, so the BAU goes after the murderer with the usual deductive profiling. They quickly label the guy as a "Type 4 assassin with a stalker mentality" and the object of his desire is obviously this "Lila" chick. The three people murdered all stood in the way of her career advancement.
This winds up to be both a very stupid but very suspenseful episode. Stupid in that the brainiac Spencer gets involved with this bimbo actress, and some of the dialog between the two was stupid. However, it was suspenseful regarding the surprise killer.