Excellent episode this week. Unfortunately Castle, moreso than any other show I watch, is undone by its static running time. Every week they catch the "killer" but I'm like "Well, there is an entire commercial break left, sooo...."
Also, Castle's figuring out of what was really going on was truly ridiculous, as was Alexis's B-plot.
And yeah I agree with everyone about his family. The writers have shown AMAZING restraint not getting his mom or daughter involved in any cases. On a lesser show they would happen to stumble into critical roles in a case like every 3rd week.