"Gekijōban Servamp: Alice in the Garden" is a feature-length anime film that expands on the events of the "Servamp" series, focusing on the relationship between Mahiru Shirota, a high school student, and Kuro, his Servamp—a vampire bound to him through a contract. The story is set in a world where vampires, known as Servamps, form contracts with humans, granting them supernatural abilities in exchange for servitude. The film delves into the backstory of Kuro, whose real name is Sleepy Ash, and his connection to a mysterious figure named Alice.

The narrative begins with Mahiru and Kuro encountering a young boy named Alice, who claims to have a deep connection to Kuro’s past. Alice’s presence triggers memories of a time when Kuro was part of a vampire clan led by his elder brother, Tsubaki. Tsubaki, a powerful and manipulative vampire, sought to create a utopia for vampires by eradicating humans. Kuro, disillusioned by Tsubaki’s methods, eventually turned against him, leading to a tragic confrontation that left both brothers estranged. Alice, who was once a human child cared for by Kuro, becomes a central figure in unraveling these memories and the unresolved emotions tied to them.

As the story progresses, Alice’s true nature is revealed: he is a manifestation of Kuro’s guilt and longing, created from the remnants of the original Alice, who died during the conflict with Tsubaki. This revelation forces Kuro to confront his past and the emotional scars he has carried for centuries. Meanwhile, Mahiru, as Kuro’s Eve (contractor), plays a pivotal role in helping Kuro come to terms with his guilt and rediscover his sense of purpose. The film explores themes of redemption, loyalty, and the complexities of relationships between humans and vampires.

The supporting cast, including other Servamps and their Eves, such as Licht and Hyde, provide additional context to the world of Servamps and their ongoing struggles. The film maintains a balance between action, emotional depth, and character development, offering fans of the series a deeper understanding of Kuro’s character while introducing new layers to the overarching narrative. The story concludes with Kuro and Mahiru reaffirming their bond, setting the stage for future developments in the "Servamp" universe.