Sep. 20, 1999
Returning Series
60 min.
NBC TV Network

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Law & Order: Special Victims Unit » Season 18
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Law & Order: Special Victims Unit - 18x15 Know It All

18x15 Know It All

3.75/5 (4 votes)
First Aired: Apr. 05, 2017 on NBC
Summary: A man under investigation for rape and murder threatens to expose the secrets of those working the case.

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Series Main Characters


Guest Stars

Olivia Benson played by Mariska Hargitay
Amanda Rollins played by Kelli Giddish
Odafin Tutuola played by Ice-T
Dominick Carisi Jr. played by Peter Scanavino
Rafael Barba played by Raúl Esparza
David Willard played by Chris Diamantopoulos
Det. Marcus Perry played by Jason Bowen (III)
Laura Knowles played by Megan Murphy

Episode Quotes

Alex Ryan: I was trying to help that girl.
Dominick Carisi Jr.: Yeah, well, we're checking your DNA right now, Alex, and I'm pretty sure it's gonna match.
Alex Ryan: Yeah, DNA. Right. If I were a rapist, I wouldn't leave any DNA.
Det. Marcus Perry: You think? Hair, saliva; if you sneezed, we got a match.
Dominick Carisi Jr.: Yeah, we already found rug fibers that came from your cab and their blood in your trunk.
Det. Marcus Perry: We don't even need a confession. Rape and murder, that's life.
David Willard: Detective Rollins from Loganville, Georgia, and Detective Carisi, proud graduate of Tottenville High, Prince's Bay, Staten Island. How can I help you?
Amanda Rollins: That's great. You always do background checks on your guests, Mr. Willard?
David Willard: No, I gather information. It's what I do.
Dominick Carisi Jr.: You're a professional Googler?
David Willard: No, I'm a little better than that. I collect data. All data. Knowledge is power, right? And my knowledge tells me I know why you're here. It's about my app, isn't it?
Amanda Rollins: Why would you think that?
David Willard: Look, I've been visited by Brooklyn and Bronx detectives already this past month. I'm gonna tell you what I told them. If some degenerate wants to use my app to stalk women, that's on him, not me.
Dominick Carisi Jr.: Guys use your app to stalk women?
David Willard: That's not what it was designed for. Look, the app isn't the problem. It's the solution.
Amanda Rollins: But that's not why we're here.
Olivia Benson: This our serial?
Det. Marcus Perry: Looks like.
Olivia Benson: Where'd we get him?
Det. Marcus Perry: The vic got into a fight with her boyfriend at a bar. She stumbles out drunk, breaks a heel, gypsy cab driver offers her a ride. Lucky for her, she's not as drunk as he thought. Recognizes him from the sketch; realizes she's in trouble, that he's got her locked in, so she texts a picture to the tip line.
Amanda Rollins: Good for her.
Det. Marcus Perry: Yeah, a precinct car pulled them over, searched the cab. His whole toolkit's here. Knife, rope, clippers, condoms.
Dominick Carisi Jr.: Did you get any blood?

Amanda Rollins: Well, check for fibers, see if they match the ones on our vics.
Dominick Carisi Jr.: Looks like we got our guy.
Olivia Benson: I want this sewn up. Get him to the squad. I want to hear him say that he did it.


  • The ending scene is the first time Benson has addressed Barba by his first name.
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