A billionaire's technological fortress in Iceland, eclectic mix of invitation-only guests, and opaque motivations provide the setup for a classic murder mystery, and this one is both surprising and compelling. The performances are generally excellent, though it is the tension and subtlety of Corin's portrayal that is mesmerising to watch and anchors the escalating suspense which steadily builds throughout the episodes. Self-aware and gripping, this was a thoroughly entertaining whodunnit well worth your time. 8.87/10