- Erwin Murphy: Inspector Queen, the commissioner assures me that you're beyond reproach. I'll accept his recommendation.
- Inspector Richard Queen: I'll say thanks when I find out what I've been recommended for.
- Inspector Richard Queen: Ellery, I've got it! I know who killed Ralph Caesar!
- Ellery Queen: He does, too. That movie had a clue. Oh, you probably caught it about the same time Dad did. Now, the other important thing to remember is the real reason Ralph Caesar was going to testify in front of the grand jury. Have you got it? Who killed Caesar? Velie didn't do it. Was it Jim Millay? Erwin Murphy? Lee Marx? Ben Franks? Or was Bonner's dying statement a lie? Or was it somebody else? I'll give you a hint: Shakespeare was wrong. Nobody is above suspicion.
- Inspector Richard Queen: [having identified the murderer] Velie!
- Sgt. Thomas Velie: I'm on suspension, Inspector. Remember?
- Inspector Richard Queen: [holding up Velie's badge] Not anymore.
- Benny Franks: You wanted to see me?
- Ellery Queen: If you're Benny Franks, yeah.
- Benny Franks: Well, I ain't the Lone Ranger.
- Erwin Murphy: Caesar was a star witness
- Benny Franks: He was my star. He twinkled when I told him to twinkle.
- Erwin Murphy: This had better be the most thorough murder investigation conducted by the homicide bureau.
- Inspector Richard Queen: They're all thorough!