A girl finds her 35-year-old father dead on the couch. The man has no medical records, but the mans family thinks that the mans well water was contaminated. A neighbor also reports that the man was coughing up blood, indicating a possible tuberculosis infection. Dr. Gs husband, an infectious disease specialist, collaborates with Dr. G on the case. A 51-year-old man is found dead in bed. The man had been suffering from depression due to his recent divorce, and two bottles of prescription painkillers are found on the nightstand next to the bed. The family suspects that the man committed suicide. Will Dr. Gs findings confirm their worst fears?