Prodigal Daughter. The Lottie Layah Trilogy, #3

Emotionally devastated after the violent death of her one true love, well-known porno star Lottie Layah, nee Kathryn Lucille O'Brien, retreats to The Sisters of Divine Mercy, a convent on the brink of closing. She is accepted as a resident because of her mother's hefty contribution - with money Kathryn earned in the "business." Almost immediately, the adventure begins. She is recruited by two bickering clergymen, one Catholic the other Protestant, to confront a popular evangelist whose daughters say he raped them.
Almost immediately, she finds herself on the trail of a serial killer with a shocking MO. Then, finally, she returns to the convent where her new friends are rejoicing over an upcoming surprise visit from the Pope. It sounds great, but will the facility's security protect the pontiff? What happens if there's a terrorist attack? What, indeed.