Rule number one of being an effective stalker: Get to know your prey. So I watch these liars day and night, keeping an eye on the trouble they get into, the messes they make, and the secrets they keep. Hanna s desperate for a very personal session with her gym trainer. Emily is number one on Santa s naughty list. Aria s old flame from Iceland is about to land her in hot water. And Spencer s resorting to some backhanded tactics to get what she wants.