The fourth season of Dexter really blew me away. Just when you think the show can't get any better it delivers another roller coaster ride of emotions and you just can't wait to see what is going to happen next in the crazy life of Dexter. John Lithgow as "The Trinity Killer" does one heck of a job... If I saw John Lithgow wandering the streets of L.A., I would probably scream and run the other way....lol I would recommend each and every season, but the fourth season is my favorite by far.