本片是根據Mark Behm同名小說Eye Of The Beholder拍攝，與原著最大差異在於Ewan McGregor之年齡，關係到他與Ashley Judd出身背景的互補，也間接影響各位對本片的欣賞
原著為一淒美，悲情的女性主義小說，試看The New York Times的書評:
"One Of the most remarkable combinations of a private-eye crime novel and psychological suspense story....that has ever been published." 讀過原著，再看本片，必有另一番滋味
McGregor對女兒的虧欠，歉疚感，加上對Judd莫名的迷戀，造成他多年的跟蹤與觀察，及不可理喻的協助...
Judd單親家庭及孤兒院的童年記憶，一路來的痛苦無依，同樣種下她成為"黑寡婦"的惡因...
兩人悲劇式的搭配，為本片自始至終營造出一股冷冽，肅殺的氣氛...小說扉頁是這樣寫的:
"The Eye watched Joanna.
She bought a new wig (auburn).She went to an oculist and had her eyes examined.She visited the animal veldt in Boca Raton.She went to the movies.
The Eye made a list of the movies she saw.
The Eye made a list of the magazine she bought.
The Eye made a list of her killings.
Seven of them that was sure of.Four husbands....."