An excellent and also a very disturbing episode. "Blood Drops" is excellent for several reasons. First the murder investigation keeps the viewer's interest and doesn't let up. I was surprised at it's conclusion and I think it's reasonable to believe that many other viewers were as well. Another reason is the viewer also gets a look at the members of Grissom's team so the viewer can in some ways relate to such things as Katherine Willows' attemps to balance work and her home life and Sara Sidle's anger at being put on what she considers an unimportant position on the investigation.