Zoo is a horror anthology consisting of 5 segments. Even though this anthology is labeled as horror, I would say that the majority of the segments are more like psychological drama with some horror elements attached to it.

The first segment "Kazari and Yoko" is a story about two twin girls where one (Yoko) is horribly mistreated and abused and the other (Kazari) is treated like a princess. It is an incredible touching story about abuse, but also the possibility of finding a better life. You feel genuinely sorry for Yoko through it all and the film manages to bind everything together with a potent ending. I would give this 4 stars out of 5 stars.

The second segment "Seven Rooms" seems very inspired by "Hostel". Two siblings are trapped in a room with no recollection of how they got there and no way to get out. They find out that they are not alone and there are several other rooms with people captured . It becomes a race against time to escape because there is a killer on the loose, killing the people trapped inside each room. This segment was not very interesting and dragged in a lot of places, but the climax was well done and also kinda sad. I would give this 2.5 stars out of 5.

The third segment "So Far" is a story about relationships between parents and how it can affect a child deeply. A young boy’s parent’s return from a car accident to find they cannot see one another, and yet he sees both. Pretty compelling story with a thoughtful finale that shows a child's perspective of potential separation scenarios. I would give this 3 out of 5 stars.

The fourth segment "Hidamari No Shi" is very surprisingly an animated film. It is about a female android which is created by a lonely scientist in the middle of nowhere. He teaches her to take care of him and ultimately about mortality and death. So it is basically a coming of age story done a bit differently. I didn't really like it, but animation was very beautiful and the themes at hand were interesting. I would give this 2.5 out of 5 stars.

The last segment "Zoo" follows a man who murders a woman at an abandoned zoo and he afterwards takes photos of her decaying corpse daily. Through flashbacks we learn more about their relationship and how the man is trying to repent for his sin. This one was actually pretty great and one of the more disturbing and atmospheric segments. The ending is surreal and the line between reality and fantasy became blurred, leaving me with a sense of unsettling ambiguity. I would give this segment 3.5 out of 5 stars.

Overall a pretty great anthology where all the segments are worth a watch but especially the first and the last are the standout ones. The first one deserves to be a full film.