Complex sentence: Fujiwara acquires Hideko's inheritance and Sook-Hee is committed to the asylum in Hideko's place Hideko turns the tables of Fujiwara, drugging and leaving him to be found by Kouzuki's goons, while she reunites with the escaped Sook-Hee.
Split into simpler sentences: Fujiwara acquires Hideko's inheritance and Sook-Hee is committed to the asylum in Hideko's place. Hideko then turns the tables on Fujiwara, drugging him and leaving him to be found by Kouzuki's goons, while she reunites with the escaped Sook-Hee.