Frye is the surname of the twins who lead Assassin's Creed Syndicate.
Jacob and Evie Frye are the game's dual protagonists. They are Assassin twins who travel to London in 1868, during the Industrial Revolution, and work to weaken Templar control over the city.
Jacob generally focuses on direct action and builds the street gang known as the Rooks. Evie specializes more heavily in stealth and investigation, while searching for an Isu artifact called a Piece of Eden. Their different skills support the game's character-switching structure.
The story features historical figures such as Queen Victoria, Charles Darwin, Charles Dickens, and Florence Nightingale. Syndicate is set primarily in London, not Paris, which helps distinguish it from Unity, its immediate predecessor.