A woman who recently gave birth is in a critical condition. A young man feels excruciating pain and doctors discover something has invaded his brain. Jakso 3 Kausi 8 Vuosi 2017

A boy is struck with a serious fever. A woman has bizarre symptoms that push her to the brink of madness, and a toddler falls into a trance-like state. Jakso 4 Kausi 8 Vuosi 2017

A man falls comatose. A student's sore throat turns deadly, and the monster destroying him is shockingly common. A woman's bizarre symptoms stun experts. Jakso 5 Kausi 8 Vuosi 2017

An infant suffers terrifying seizures. A biology professor in a strange experiment becomes an unexpected host. A family man is hit by thousands of parasites. Jakso 6 Kausi 8 Vuosi 2017

A teenager develops mysterious blotchy sores. A tough athlete is hit by a rare disease that make him hallucinate. Plus, a woman battles strange bouts of vomiting. Jakso 7 Kausi 8 Vuosi 2017

A man starts coughing up blood. A newlywed husband is struck down by a rare disease. A young father experiences crippling abdominal pain. Jakso 8 Kausi 8 Vuosi 2017

A man falls comatose. A student's sore throat turns deadly, and the monster destroying him is shockingly common. A woman's bizarre symptoms stun experts. Jakso 5 Kausi 8 Vuosi 2017

An infant suffers terrifying seizures. A biology professor in a strange experiment becomes an unexpected host. A family man is hit by thousands of parasites. Jakso 6 Kausi 8 Vuosi 2017

A man experiences bizarre swelling around his eye. A 12-year-old girl falls mysteriously ill and a young woman's symptoms leave her close to madness. Jakso 1 Kausi 8 Vuosi 2017

A young girl goes to hospital with stabbing pains in her scalp. A woman is struck by severe, strange symptoms that threaten to tear her family apart. Jakso 2 Kausi 8 Vuosi 2017