Best-selling crime novelist Patricia Cornwell is writing an original drama pilot for CBS through ABC Studios. She will executive produce the yet-to-be-titled project with Gretchen Berg and Aaron Harberts, AceShowbiz said.

The drama will focus on a character named Angie Steele, a brilliant, unorthodox detective who works for San Diego's Major Crimes Unit. She finds that demons from her past come back to haunt her.

Cornwell is best known for her Dr. Kay Scarpetta book series. In total, her books have sold more than 100 million copies.

The CBS/ABC Studios project marks the second consecutive drama sale for the 58-year-old writer. Last year, she wrote another drama based on her idea, "Greta Stone", which was set at ABC.