Summary from GoodReads:

Kathy Spence awakens in the middle of the night and finds herself in a living nightmare. Her husband has been run down and she is the primary suspect. With an eyewitness to the crime and proof that her car was the murder weapon, it appears to be an open and shut case. Terrified for her future, Kathy turns to amateur sleuth Anne Marshall for help. Believing in Kathy s innocence, Anne launches her own investigation, uncovering proof of a conspiracy that reaches from Kathy s past and threatens her own life. In a race against time, Anne must count on her close friends and even the ghost of her father to help her bring a killer to justice before it s too late