Dash hates Christmas, but his Yuletide spirits brighten when he finds a mysterious red notebook filled with clues hidden at his favorite bookstore.

Lily loves Christmas, but the prospect of a lonely holiday inspires her to connect with Dash through the notebook — and send him on another dare.

Dr. Melfi’s attempts to steer Tony into behavior-modification therapy take a detour when a personal crisis gets in the way. Meanwhile, Ralph Cifaretto finds a way to endear himself to…

A woman is drugged and falls to her death, and the evidence suggests that her ex-boyfriend and her current husband’s ex-wife may have conspired to kill her.

The murder of a drug-laden teen presents the detectives with a host of suspects from her wealthy family.