"CLUE: SI" -- When a psychiatrist’s patients are being systematically murdered, Dr. Sheldon Hawkes (Hill Harper, left) and Det. Mac Taylor (Gary Sinise, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved. FRAME GRAB BEST QUALITY

"CLUE: SI" -- When a psychiatrist’s patients are being systematically murdered, Dr. Sheldon Hawkes (Hill Harper, left) and Det. Mac Taylor (Gary Sinise, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved. FRAME GRAB BEST QUALITY

"CLUE: SI" -- When a psychiatrist’s patients are being systematically murdered, Dr. Sheldon Hawkes (Hill Harper, left) and Det. Mac Taylor (Gary Sinise, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved. FRAME GRAB BEST QUALITY

"CLUE: SI" -- When a psychiatrist’s patients are being systematically murdered, Det. Lindsay Messer (Anna Belknap, left) and Det. Danny Messer (Carmine Giovinazzo, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Shot on location in the Central Park Zoo. Photo: CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved. FRAME GRAB BEST QUALITY

"CLUE: SI" -- When a psychiatrist’s patients are being systematically murdered, Dr. Sheldon Hawkes (Hill Harper, left), Det. Jo Danville (Sela Ward, center) and Det. Mac Taylor (Gary Sinise, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Richard Foreman/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

"CLUE: SI" -- When a psychiatrist’s patients are being systematically murdered Det. Mac Taylor (Gary Sinise, left) and Det. Jo Danville (Sela Ward, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Richard Foreman/CBS ©2012 CBS Broadcasting, Inc. All Rights Reserved.

"Clue: Si" -- Eddie Cahill (left) and Natalie Martinez (right) prepare to shoot a scene on location in New York City, on CSI: NY, scheduled to air Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Craig Blankenhorn/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved

"Clue: Si" -- When a psychiatrist’s patients are being systematically murdered, Det. Don Flack (Eddie Cahill, left) and Detective Jaime Lovato (Natalie Martinez, right) are forced to play along in a game of Clue in order to catch the killer, on CSI: NY, Friday, Nov. 9 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Shot on location in New York City. Photo: Craig Blankenhorn/CBS ©2012 CBS Broadcasting Inc. All Rights Reserved