The murder of a high-ranking Spacer leads to quiet panic amongst Earth's officials due to fact that it is suspected that a Human is the perpetrator. Spacers regard humans as unclean and disease filled, and they strongly wish to sever ties with Earth, and with the murder- this may come into reality. So, the main character meets R. Daneel Olivaw- a robot which has been engineered to look like a Spacer which unsettles Lije- but now, they must work together. Personally, I like the idea that Lije is discriminatory against robots and Spacers; it opens the door for great character development. I'm curious about how it will effect his future choices and the investigation.

That's right. Odo is boss.