America’s favorite serial murdurer has gone from freewheeling bachelor to responsible companion and doting dad. Sustaining an regular-guy facade while satisfying his need to kill has by no means been easy. But now, with wife and youngsters in tow, Dexter’s got more to lose then ever, as he gets drawn into a deadly diversion with a killer every bit as dangerous. Recounting with tragic unavoidability. Dexter’s fourth season is a grim game of cat and canary sandwiched between Dexter and Arthur Mitchell, a very distinctive kind of monster. Whoever guest stars in episodes to come has a very solid act to chase. The Dexter series has a high reverse-story and mythology, but for persons new to the series season 4 is a good place to start off, since it represents somewhat of a different launch for Dexter himself. Married at the ending of season 3, he is now dreaming of “obtaining it all” as a companion and father, trying to fit in the anxiety of his employment as a Miami Metro Police Department blood-spatter analyst, his new family, and his other calling as a serial killer. His new born baby keeps him up all night, and the ordinarily meticulous and methodical Dexter finds himself worn to the point of making errors in court. Dexter and Mitchell are not the only ones keeping secrets. As the season unfolds, an incognito Dexter inserts himself into Arthur’s life and finds disturbing parallels in their lives. In the meantime, now-retired serial murdurer hunter Frank Lundy returns to inquire for his help in snagging the Trinity Killer.