Episode 1
Episode: 1x01 | Airdate: May 1, 1981
The late arrival of Sheila Anderson on the small island of Inverdee has a dramatic effect on the community, and on Sheila. An investigation is launched.
Season 1
Episode 2
Episode: 1x02 | Airdate: May 8, 1981
The bizarre and brutal murder remains a mystery. Could it be a ritual killing? With a killer on the loose, Inverdee is in great danger…
Episode 3
Episode: 1x03 | Airdate: May 15, 1981
Dr Symonds has been brutally murdered. Are the killings linked to the other strange incidents on the island? Michael wonders at the identity of the murderer.
Episode 4
Episode: 1x04 | Airdate: May 22, 1981
The film from Dr Symond's camera reveals the hideous nature of his attacker. The coastguards fight for their lives against an otherworldly threat.