"The 7th Guest, produced by Trilobyte and released by Virgin Games in 1993, is a FMV-based puzzle video game, not unlike The Fool's Errand and predating Myst. It was one of the first computer video games to be released only on CD-ROM. The 7th Guest is a horror story told from the unfolding perspective of the player, as an amnesiac.
The game is played by wandering the mansion, solving logic puzzles and watching videos that further the story. The main antagonist, Henry Stauf, is an ever-present menace, taunting the player with clues, mocking the player as they fail his puzzles ("We'll all be dead by the time you solve this!"), and expressing displeasure when the player succeeds ("Don't think you'll be so lucky next time!")."
Source: Wikipedia, "The_7th_Guest," available under the CC-BY-SA License.