A group of high school friends reunite after two years when one of their fathers' committed suicide. They all spend the night at their friend's place. When darkness falls, strange things begin to happen to them one by one. It is as if someone is using the black arts on them in revenge for an act this group of friends committed together back at high school.

Gaira, a humanoid sea beast spawned from the discarded cells of Frankenstein's monster, attacks the shores of Tokyo. While the Japanese military prepares to take action, Gaira's Gargantua brother, Sanda, descends from the mountains to defend his kin. A battle between good and evil ensues, leaving brothers divided and a city in ruins.

A ship runs aground on a mysterious atoll leading to an investigation by insurance representative Kusanagi, who discovers an ancient bead that he gives to his daughter Asagi. Meanwhile, ornithologist Nagamine investigates reports of a new species of large bird named Gyaos. As the Gyaos begin to attack, an ancient guardian with a bond to Asagi emerges.

In the town of Saima, when summer is about to begin, a group of six high school students intend to live a secret adventure by spending seven carefree days in a ruined mining facility.

Gamera escapes from his rocket enclosure and makes his way back to Earth as a giant opal from New Guinea is brought back to Japan. The opal is discovered to have been an egg that births a new monster called Barugon. The creature attacks the city of Osaka by emitting a destructive rainbow ray from his back, along with a freezing spray capable of incapacitating Gamera.

GAMERA is a kaiju short film first released as a celebration of the 50th anniversary of Gamera's debut film.

As alien invaders plot to conquer the Earth, two Boy Scouts steal a mini-submarine and discover Gamera in their midst. Transported to the alien's spaceship, the Scouts are menaced by the evil inhabitants, including Viras, a squid-like monster that grows to colossal size to battle Gamera.

A teenager named Noriko Shimabara runs away from her family in Toyokawa, to meet Kumiko, the leader of an Internet BBS, Haikyo.com. She becomes involved with Kumiko's family circle, which grows darker after the mass suicide of 54 high school girls.

Kanji Watanabe is a middle-aged man who has worked in the same monotonous bureaucratic position for decades. Learning he has cancer, he starts to look for the meaning of his life.