An alluring witch casts a spell on the handsome publisher who lives upstairs in her Manhattan apartment block to stop him marrying her old college rival. Meanwhile, her beatnik warlock brother is trying to write a novel in collaboration with a drunken novelist. Supernatural romantic comedy, starring James Stewart, Kim Novak, Jack Lemmon, Ernie Kovacs and Elsa Lanchester.

Gillian Holroyd, a modern-day witch, becomes smitten with her handsome upstairs neighbor, Shep Henderson. Using her magical powers, she casts a love spell on him, only to face unexpected complications when genuine feelings emerge, threatening her supernatural abilities.