4 episodes • May 1, 1981 - May 22, 1981

A heavy fog cuts a small isolated Scottish island from the mainland, and dentist Michael Gaffikin has just discovered a dismembered corpse on the golf links. Gaffkin and his artist girlfriend assist local law enforcements in searching for the killer. However, as the body count rises and the surrounding circumstances turn increasingly bizarre and gruesome, everyone begins to wonder if the perpetrator is a human or an unimaginable creature.

4 episodes

1. 

   Part 1

   May 1, 1981 (45 years ago)

   The tourists have returned to the Scottish mainland and Inverdee is preparing for the long hard winter. However, Sheila Anderson's late arrival has a dramatic effect on the island community, as Michael Gaffikin and Inspector Inskip are soon to discover.

2. 

   Part 2

   May 8, 1981 (45 years ago)

   The brutal murder of Sheila Anderson remains a mystery. Could it have been a ritual killing? While her murderer roams free, Inverdee's community is in great danger.

3. 

   Part 3

   May 15, 1981 (45 years ago)

   Dr. Symonds has been brutally murdered. Radioactivity is discovered on Inverdee; a 'flying saucer' has been sighted, and a strange craft is found on the sea-shore. Are these incidents connected with the recent killings?

4. 

   Part 4

   May 22, 1981 (45 years ago)

   Although the film from Dr. Symond's camera reveals the presence of a grotesque, monster-like creature, Inspector Inskip remains suspicious of the Colonel's activities.Unknown to the island community, the coastguards are fighting for their lives.