Cal is a character who can get old after a while. It seems like he has to be confrontational in every episode and be mean to one person or another. "Veronica" didn't have the usual brash Cal Lightman who's not afraid of anyone and willing to be a jackass to get answers. Instead, we see the soft side of Cal, one which is caring and able to coax a memory out of someone without being rude. I could bring myself to like Cal at the end of the episode.
The case itself is nothing special, a doctor going around and doing mercy killings which Cal uncovers in the end. Everyone helps out in there own way, including Emily who originally found Veronica. Loker's admission to Cal that the tough love was actually good is kind of dumb, justifying the worst of Cal's behavior because the end result is good (though getting beaten isn't good either).