Neurosurgeon Koichi uses an experimental technique to enter the brain of his beloved Atsumi, who is in a coma after attempting suicide. In his quest, Koichi drifts steadily further into the sweltering marshes of the spirit. It is soon no longer clear what is real and what is not.
| Actor | Role |
|---|---|
 Takeru SatohKoichi Fujita | Koichi Fujita |
 Haruka AyaseAtsumi | Atsumi |
 Joe OdagiriSawano | Sawano |
 Shota SometaniShingo Takagi | Shingo Takagi |
 Keisuke HoribeYonemura | Yonemura |
 Yutaka MatsushigeHaruhiko | Haruhiko |
 Kyoko KoizumiMakiko | Makiko |
 Kenta HamanoPolice Officer | Police Officer |
 Miki NakataniShrink | Shrink |
| HHideaki WashioNot listed | Not listed |