On a chilly Monday in late spring, Sheriff Dave Cubiak is at the Green Arbor Lodge for lunch when a scream from a nearby medical conference disrupts the scene. Leaping into action, he finds the ninety-three-year-old director of the prestigious Institute for Progressive Medicine collapsed on the floor, dead of a suspected heart attack. As Cubiak interrogates the witnesses, he's struck by the inconsistencies in their stories. Some evade questions while...