Definitely not a happy story. It's dark with gore and death everywhere. The Terror is a quite slow paced horror drama. The scare is not jumpy just gory and is all the way through the episodes.
Great acting and script make this a compelling series to wade through. The set is either a ship or a stark icey landscape so although it's very atmospheric, theres no scenic splendour to enjoy.
The Terror is slow, dark but a compelling series to watch.