Low-budget but quite effective evil tale from Danny Ko (co-director of The Day That Doesn't Exist). Even though he delivers an awful, expository ending, a way too invincible faceless villain and never gets the ol' Hitchcock zoom right, Ko has quite a superb eye for chilling violence, highlighted mostly in the various stunt-heavy chase scenarios for the dark rider. An unfair but underrated low-fi thriller. Also starring Loletta Lee, Ada Choi, Stephen Au, Emily Kwan and Elvis Tsui (who never does any scene outside of his office chair).