Beware of twin genies bearing gifts, especially when our sweet Jeannie (Barbara Eden) receives a birthday present from her wicked lookalike sister Jeannie II (also Barbara Eden). The gift consists of two bottles, one containing a "love" potion, the other a "hate" potion. Jeannie II craftily switches the bottles, and as result Jeannie ends up despising her master Tony (Larry Hagman)--and falling madly in love with Roger (Bill Daily)! ~ Hal Erickson, Rovi