This episode was originally called "The Beast" and was changed to "If These Walls Could Talk" for the episode's premiere. When it was re-run on CBS, executives changed the name one more time to "Blood Drops".

Ratings: 15.7 million viewers

Ecklie: I just got off the phone with the Sheriff. He wants results, Gil.
Grissom: He should go to a sports book. I hear the Stardust is good.
Ecklie: No. What he should do is go to his first team... my team.
Grissom: Teams, Conrad? I didn't know this was a competition.
Ecklie: Well, it is, and my crew usually wins.
Grissom: Really? Didn't graveyard beat day shift in softball last summer?
Ecklie: You know, you can joke all you want. It's your ass on the line.
Grissom: I think it was 14-3.
Ecklie: Like I said, it's all about results. And, if you don't get them, I will.

Catherine: That would be Grissom.
Eddie Willows: How is your boyfriend?

Conrad Ecklie: You kept the Sheriff out of the loop. That's a career killer, Gil.
Gil: That's what so sad Conrad. You think of this as a career.

Sara: You've got to be kidding me? I'm playing taxi service on the biggest case of the year!?

Catherine: Okay, I'll be right there. Just let me put on some clean clothes.
Gil: Please do.

The butterfly shadow box in Catherine's home is identical to a shadow box seen in Gil's home in "Strip Strangler" and "Burden of Proof".

Catherine: Eddie ...
Eddie: She's going to ask where you are.
Catherine: She always does.

This is followed up in "Sex, Lies and Larvae" when we find out Eddie called Social Services due to Catherine's working so much.