Hepburn plays a Philadelphia socialite who has just divorced Grant and is looking for a new husband. Seeking to prevent an unfortunate wedding, Grant appears with Stewart who falls for Hepburn and keeps up with her biting wit and humor.
Topper is tormented by the spirit of Gail Richards, a beautiful young girl who is murdered while vacationing at the home of a wealthy friend. Topper and Gail team up to find her killer, with comic results.