Brian Murphy and his family are on a summer excursion in Cape Cod when his wife, Emma, comes down with concerning flu-like symptoms. But their leisurely return home to New York City quickly becomes a race to the local hospital as she suddenly begins seizing in the car. At the ICU, she is diagnosed with eastern equine encephalitis, a rare and highly lethal mosquito-borne viral disease. Complicating the situation further, Brian and Emma's young daughter then begins to exhibit alarming physical and behavioral symptoms, too. Emma's harrowing hospital stay turns even more fraught when Brian receives a staggering hospital bill full of outrageous charges and murky language. Forced to choose between the ongoing care of family and bills he can never pay, and furious at a shockingly indifferent healthcare system, Brian vows to seek justice. He must uncover the dark side of an industry that has strayed drastically from its altruistic roots and bring down the callous executives preying on the sick and defenseless before the virus can claim even more people.