Based on a true story from the case files of a real-life Wiccan, Ipsita Roy Chakraverti, Sacred Evil is the story of three women separated by a twenty-year-old secret: a nun, a Wiccan, and a girl in search of her mother.

The nun is Martha, a 45-year-old withering woman who lives in a secluded convent in Calcutta. Even in the sanctuary of the church, she is haunted by a specter that threatens her sanity. The Wiccan, Ipsita, is called upon by the unconventional Mother Superior to heal Martha’s soul.

The task is difficult as Martha is reticent about talking about the events in her past. Using her skills as a healer and her training as a Jungian psychotherapist, Ipsita gradually opens the door to Martha’s story of the one who haunts her.

An Anglo-Indian girl called Claudia grows up with the angst of not knowing her mother, Maureen, alienated in her Indian surroundings by her blue eyes and blonde hair.

The story now goes back and forth as events from Claudia’s life begin to intersect Martha’s, and Ipsita tries to sort out the tangled threads of the past and present. In her search for the lost Maureen, whom everyone says looked much like her, Claudia becomes obsessed with her mother’s image. She begins to turn into her mother. Like her, she seeks out and falls in love with a foreigner, Pierre, a young Frenchman who is in Calcutta for a doctorate. But Pierre is never sure who is in love with him, Claudia or Maureen.

As she tries to heal Martha with centuries-old Egyptian rituals of the Wicca, Ipsita learns of Claudia’s struggle to keep her sanity and Martha’s attempts to save her soul — how she tried hard to bring her to the church and let God heal her. Ipsita also learns that somewhere the attempts failed. Something happened. Claudia’s burden became Martha’s. With her own efforts failing to heal Martha’s spirit, Ipsita is led to a startling discovery in the end, which makes her wonder if the sacred will ever be as strong in us as the evil is.