15 Movies Like Guinea Pig: Mermaid in the Manhole

Yasuko, a housewife, lives in an urban high-rise apartment with her husband Satoru and her son Takuto. Annoyed by spam calls and door-to-door salesmen, Yasuko slams the door on a salesman’s hand when he tries to squeeze a flyer through the apartment's chained front door. He leaves, but the next day, her nightmare starts.

In a brutal war between devils, hunters, and secret enemies, a mysterious girl named Reze has stepped into Denji's world, and he faces his deadliest battle yet, fueled by love in a world where survival knows no rules.

High schoolers Mitsuha and Taki are complete strangers living separate lives. But one night, they suddenly switch places. Mitsuha wakes up in Taki’s body, and he in hers. This bizarre occurrence continues to happen randomly, and the two must adjust their lives around each other.

After losing their child, a mother finds solace in a life-sized ancient doll she finds on the market. When a new daughter enters the family's life, strange things begin to happen and no matter how hard the family tries to get rid of it, the doll always finds its way back.

A woman gets caught by the wife of her lover which results in a stabbing. Feeling guilty she runs away and joins a nunnery. But she soon discovers that several nuns and a well known author have turned the place into their own personal S&M playground.

A man trapped in an endless sterile subway passageway sets out to find Exit 8. The rules of his quest are simple: do not overlook anything out of the ordinary. If you discover an anomaly, turn back immediately. If you don’t, carry on. Then leave from Exit 8. But even a single oversight will send him back to the beginning. Will he ever reach his goal and escape this infinite corridor?

Shouya Ishida starts bullying the new girl in class, Shouko Nishimiya, because she is deaf. But as the teasing continues, the rest of the class starts to turn on Shouya for his lack of compassion. When they leave elementary school, Shouko and Shouya do not speak to each other again... until an older, wiser Shouya, tormented by his past behaviour, decides he must see Shouko once more. He wants to atone for his sins, but is it already too late...?

Masked thugs torture an innocent woman in increasingly brutal ways.

At the clinic where her boyfriend Katayama, a young genius doctor, is the director, Yoko, a young girl who continues to suffer from eerie nightmares every day, is not getting better despite the care of her sister Sakurako and Katayama's treatment. Sakurako, the sister, is suspicious of Yoko's condition and confronts Katayama, who tells her that she suffers from a serious mental disorder and that the only way to cure it is to have brain surgery. Yoko, despite being persuaded by her sister and Katayama, agrees to the surgery, although she is skeptical...

A passionate telling of the story of Sada Abe, a woman whose affair with her master led to an obsessive and ultimately destructive sexual relationship.

When successful business man refuses to save the business of his former partner he has his wife and her student kidnapped. The former partner plans to take his revenge by forcing both women into sexual slavery by training them as SM porn stars.

After losing her parents, young flower selling Midori is put up by a fairground group. She is abused and forced to slavery, until the arrival of an enigmatic magician of short stature, who gives her hope for a better future.

Rejected by the military and frowned upon by his fellow villagers, a young man nicknamed 'Genius' falls into a series of dangerous love affairs during World War II.

In postwar Japan, Godzilla brings new devastation to an already scorched landscape. With no military intervention or government help in sight, the survivors must join together in the face of despair and fight back against an unrelenting horror.

An elite salaryman drunkenly tries to die by suicide, but is saved by a mysterious stranger who holds him captive and sexually torments him.