Cooper Lee and her friends in the Hope Street Bible Study Group are enjoying a glorious summer day in the park, complete with a picnic, hiking, swimming, and a local bluegrass band. But Cooper knows that no good day goes unpunished, and when a man turns up dead in the nearby woods—and the sister of Cooper's fiancé is named as the prime suspect—the group may have to trade in their prayers of thanks for pleas of divine intervention.
Cooper knows her future sister-in-law is innocent, so when the police arrest her for the murder, the Bible study group must step in to catch the real killer and prevent a grave injustice. Following a twisted trail of clues that leads to a hit-and-run driver, a homeless veteran, and a park full of suspects who may hold more secrets than solutions, Cooper must hold firm to her spiritual convictions before an innocent woman faces a conviction of a more earthly nature.