Watch Online Free on Watchseries. A thrilling entertainment mystery period drama directed by Daisuke Yamazaki, depicting the remarkable feats of detective with the beautiful "doll-like" face, Sashichi, who skillfully unravels the serial murders involving Hannya masks swirling around the streets of Edo's 808 districts with his adept jutte handling. This is the first installment in the series starring Tomisaburō Wakayama.