Harley is about to cross the line from wacky to just plain insane. Bishop, the cop who sworn to take her down for killing his partner, has unknowingly met her under her fake civilian guise of psychiatrist Jessica Seaborn. Now, Harley has accepted a date with this not-so-fine example of Gotham's finest. And just to keep Harley on her toes, Cupid has sent a certain psychotic ex-paramour to turn this into the strangest date in the history of love. Can you say...The Joker?