During a SWAT bust, Steve's LAPD friend Douglas Quinten 'Doug' Vogel gets killed by a bullet from his own commander, Max Jupe, who is two years from retirement. City Attorney Andrew Chivers forbids Max any contact with the widow Janine, who quickly accepts the 20% profit-sharing legal services of slick attorney Daniel Brent. Actually. Max and Janine were secret lovers who planned Doug's death. Mark quickly catches on when Max is diagnosed with chickenpox, a recent problem in Janine's daycare center, although the lovers claim not to have met in three months. A 'shooting demonstration' by cocky Max proves that he doesn't need glasses and he is a superb marksman. Janine takes another lover-her lawyer Brent, who is suing Max and the city for $10 million.

《谋杀》第二次假死了。Netflix宣布预定《谋杀》第四季暨完结季，以限定剧集形式播映。该剧于2011年由福斯电视工作室（Fox TV Studios）制作，AMC播映。…

在掩饰Skinner失踪的同时，Linden和Holder分派到一个新案件：一个与军事院校有着关联的家庭的残忍案件。

The day Dr. Mark Sloane is to be 'honored' as Man of the Year at the Roast, where comedians makes merciless fun of him in the Jokers Club, which despite its fun-loving name is also a cesspit of envy and blame, Andy Baxter, a sideman who made a surprise appearance grossly insulting the speaker, Lou Summers, and dropping trou he's killed during a very short power break by a knife in the back. While Steve is conducting first interrogations, the killer knocks out Jesse and stabs Lou to death. The crowd provide multiple clues and suspicions, but Mark figures it all out by elimination on accounts of motive and opportunity.

Steven and fellow LAPD Detectives Halloran and Stang (who are partners) find Councilman Watson ( whom they wanted to question about corruption) passed out at home on tranquilizers Mark prescribed; in the next room is his separated wife Janet's corpse. She has been shot and her blood is all over the house. Police Chief Masters, a political rival for the mayoral campaign, refuses to comment. Mark decides to look into Watson's claim to have been framed, working together with Captain Cynthia Pike; even though it may make Steve look bad, he is happy to collaborate. Amanda hopes to work trough her an 'amicable' divorce from baby CJ's dad by becoming a medical examiner in the coroner's office but she finds nothing; this “negative“ finding is enough for Mark to prove there was a frame, and that Stang had motive and opportunity - he shoots himself; his gun was used for Janet's murder. Now Mark sleuths on; Stang could have been framed himself if Masters is in the plot.

Teenager Ashley York murders her sick father Arthur by fixing his Deprosine pills to an overdose. Mark doesn't believe it's suicide, there's no note, absolutely no fingerprints and he set the coffee machine timer for after his death; Jesse concurs his intake of other medicines makes no sense for a suicide. Amanda shows Jesse a postcard: his predecessor Jack Stewart has set up a fancy private practice after his residency in Community General. Then Ashley, who overheard the Sloans, 'finds' a note, but computer-printed, and as Mark soon proves posthumously, murder. Ashley's mother, Dr. Elaine York, intends to keep the purse strings of her $7,000,000 trust-fund till she turns 25. Jesse finds out via a financial friend that Elaine, as a doctor certainly capable of the murderous plan, paid Arthur $2,000,000 at their divorce and kept paying the expensive beach-house, while his entire estate goes to Ashly.

D. Sloan is terribly nervous about an IRS audit, sees 'sloppiness' everywhere, and leaves a 'death threat' on his accountant Ernie Pitt's answering machine, desperate for help. When Mark sneaks out from Agent Gretchen McCord's first interview for a 'medical emergency' he thus ends up bent over Pitt's corpse, stabbed to death. LAPD Detective Claire Van Sickle grants him no favors as colleague Steve stood her up a while ago. The two harpies team up to 'coordinate their attack' on Mark.

Mark Sloan is a doctor at Community General Hospital, and he is a consultant for the police department. His son Steve Sloan is a detective for the department. He and his father, along with emergency room resident Dr. Jesse Travis and Dr. Amanda Bentley, who is the pathologist at the hospital help to solve some very strange murder cases in Diagnosis Murder

Caitlin Sweeney bombed Community General in the last episode, and a number of characters are trapped in the rubble. Mark worked hard to save Amanda's life. After 4 months pass, the hospital starts to reopen, and Steve announces that Caitlin has started robbing banks to raise money for R.O.A.R.: Revolutionary Order for Armed Rebellion. Steve and Jesse discuss plans to buy Barbecue Bob's, which is going out of business.

侦探小说作家Richard Castle (内森·菲利安 Nathan Fillion 饰)什么都不缺:名利、英俊的外表、崇拜者等，但他却对这种生活感到厌倦，处于事业上的瓶颈。在家又被过气演员母亲Martha(Susan Sullivan饰)和十五岁但人细鬼大的女儿Alexis(莫莉·奎恩 Molly C. Quinn 饰)盯紧。自从纽约刑警调查员Kate Beckett (斯坦娜·卡蒂克 Stana Katic 饰)找上他协助调查一连串的凶杀案开始。Richard开始以他的侦探头脑帮助Kate破案。而两人在争执和磨擦中建立默契，甚至感情和爱情……