Furious Finale Reveals Catherine Killed Isabel

The first season of the Hulu crime thriller "Furious" concluded with a series of revelations that redefined its central mystery and set a new direction for its protagonist. In the finale, titled "Hart Island," it was revealed that Catherine Grace, who had been on a killing spree to avenge her friend Isabel, was the one who ended Isabel's life. The discovery came as Catherine finally recovered her repressed memories of the night Isabel died at the home of billionaire Jay Easton. According to the events depicted in the finale, Isabel was severely injured after giving birth in Easton's home. Catherine recalled that Isabel, in immense pain, begged her for help.