
Or as Wiki puts it, a 2016 Taiwanese black comedy-fantasy-mystery-drama film. Here is the trailer
https://youtu.be/iecoQfdwQ1k
Synopsis(quoting Variety here)
The tenants are an interesting bunch. Kuo Li (Lee Kang-shen) and Linghu (Bernard SenJun) are a gay couple attempting to hide their relationship. Divorced gym instructor Chang (Chuang Kai-hsun) is a ball of pent-up rage. Depressed single father Wang (Phil Yan) harbors incestuous desire for his young daughter (Angel Ho). Li Xing is terrific as Miss Chen, an office worker with a high sex drive. Boyan (Yan Sheng-yu) is a video game-addicted student whose only other pastime is onanism.
If theres a love interest here its Yingru (Ivy Shao, excellent), a beautiful young woman whose apartment is stacked with ominously heavy suitcases, and whose bathtub contains an unfortunate young man being subjected to the vilest torture.
The landlord, the guy pictured above, spies on them. Fun ensues.
As usual lock if old