If you don't have this entire series, get it. This is TV at its finest. If you are interested in acting, watch this show to see how it's done right. I have the entire 7 seasons on both DVD and digital. I watch parts of it repeatedly. I never get tired of this show. It's not because of the stories the episodes tell but because of the magnificent acting by Simon Baker as Patrick Jane, followed closely by Robin Tunney as Teresa Lisbon and Tim Kang as Kimball Cho. Then there's the camera work and staging and dialog. There is very little of the violence, explosions and car chases that other shows seem to think are needed and none of the nudity and crude language. The story line is basically a character study of Patrick Jane; born and raised in a traveling carnival, abused by his father, a genius at "reading" people as a "psychic" who contacts people in the "afterlife," who profiles a serial killer ("Red John") on TV. Red John murders Jane's wife and little daughter in retaliation. The damage this does to Jane is profound. He spends a year in a mental hospital, suicidal (watch Robin Tunney's face that says it all as she hears about this and realizes the depth of Jane's pain), has severe insomnia, and finally sets out to get revenge by finding Red John and killing him. Although he is wealthy from his fake "psychic" life of exploiting vulnerable people (which he profoundly regrets: "I didn't give her hope, I sold her hope"), he lives almost a homeless lifestyle, sleeping on couches, sometimes using an extended stay motel. He works his way into the California Bureau of Investigation to gain access to the RJ files and becomes the CBI's consultant, using his mentalist skills to solve the show's crime of the week in clever ways, sometimes very funny, sometimes dramatic. (Note Jane's "hideaway" in the CBI attic - most creative staging I have ever seen.)
Baker portrays Patrick Jane as something of a clown with a broken heart; on the surface witty, clever, compassionate, no regard for authority, lives life only on his terms - below the surface he is in constant mental anguish over the loss of his family and unable to get on with his life until he finds and ills Red John. Great acting to create 2 characters in one seamlessly. Watch the emotions play over Jane's face when he shows joy over another's found happiness ("Ruby Slippers" in S5) while realizing such happiness may never again be his. Simon Baker is a face actor beyond compare. [Production note: The writers could not decide who Red John would be so whenever Red John speaks (unseen) that is Simon Baker doing the voice.]
Much of the enjoyment in watching the show is noticing the subtle and nuanced aspects of the story. Nothing is shoved in the viewer's face. You see the depth of the story by paying attention to details. Look for the one thing left in the home where Jane's family was killed. Think about why Jane (in S6 on the island) refused to have a shirt made with epaulets (check out "Throwing Fire" in S2). Ask why Jane cowered like a little kid when he was suddenly attacked in S7 and remember the times Jane mentioned having been in Children's Protective Services - and relate that to "Throwing Fire" also). And if you watch the show carefully you will know that the 2nd "Red John" Jane kills in S6 is really just another sacrificial minion like the "Red John" Jane killed in S3. For the real Red John, watch "Behind the Red Curtain" in S2 and "Red Listed" in S5 where we also learned that Bob Kirkland has a twin brother, Michael Kirkland, who fits the Red John persona in every way. (And watch the Kristina Frye character in S2 and note how she describes Red John and consider that she might have been RJ's consort who - perhaps in an ending the writers never showed us - gives RJ the merciful death he hoped for in "Behind the Red Curtain."
The Mentalist is a great series on so many levels! You can check out some scenes on YouTube that fans have put up. Just enter "Simon Baker" when you open YouTube and it will all come up.