In the shadow of the tower
We lovers two entwine,
Bringing beat to breath and life to power
And forging your soul to mine!

Something changed Prue Halliwell on New Year's Eve, when a stranger gave her the most passionate kiss of her life. Now Prue feels driven to kiss every man she meets.

At first, Piper and Phoebe think the new Prue is fun. But when Prue grows weaker with every kiss, the Charmed Ones know that evil is at work. Now Piper and Phoebe must save their sister, but can they do it with only the Power of Two?