The Enli (Kodiak)

Aboard the USS Regent the Kodiak crew undertakes a cultural observation mission. The Enli are an early industrial revolution society not dissimilar from the Victorian period on Earth. On the surface, all proceeds as normal until a gang of thugs kidnap Commander Vedoc. During his rescue, the crew discovers the existence of an evil energy being that is responsible for a host of grizzly serial murders. The being possesses members of the crew in turn, until at last it tries to posses the ship's computer where it is trapped.