Cuckoo

The film opens with a serene domestic setting that is immediately shattered by raised voices. This discord serves as a backdrop for the teenage girl, who responds instinctively to a foreboding bird call, leading her to escape into the woods, indicating the start of her journey into chaos.

In a secluded area of the Bavarian Alps, Gretchen navigates the complexities of family life following her mother's death. Living with her father, Luis, and his new wife, Beth, she grapples with emotions exacerbated by the presence of her mute half-sister, Alma, whom she dismissively regards as 'her father's daughter.'

Gretchen's life becomes intertwined with Dr. König, a mysterious figure associated with the hotel where she finds work. His enigmatic presence raises questions about his intentions and his connection to the series of events unfolding around Gretchen.

While working at the hotel, Gretchen collaborates with Dr. Bonomo and spends time with Alma, who tries to mimic Gretchen's playful air-guitar performances. However, their lighthearted interaction spirals into chaos when the unsettling bird call triggers Alma's seizure, intertwining their lives in a traumatic moment.

Gretchen embarks on a late-night bike ride home, ignoring König's warnings about the woods after dark. As shadows surround her, she becomes aware of a terrifying presence—the Hooded Woman—whose pursuit leads to a shocking accident that leaves her injured and her fears amplifying.

The following day, Gretchen meets Henry, a detective investigating murders linked to the ominous Hooded Woman. His fascination with the case draws Gretchen deeper into a world rife with horror and manipulation, marking her deeper entanglement in the mystery.

Caught in a surreal time loop, Gretchen relives a romantic moment with Ed, only to have it disrupted by the Hooded Woman, resulting in a tragic car crash. This blurring of past and present begins to unravel her mental state, as reality and nightmare collide.

Joined by Henry, Gretchen surveils the Lovers Lounge in anticipation of Trixie and Erik's outing. Their newfound friendship soon faces danger as the chilling bird call rings out once more, heralding the sinister return of the Hooded Woman who targets Trixie.

In a heated encounter with her father, Gretchen expresses her rage over the chaotic occurrences and König's sinister role in her family's life. The discovery of her mother's belongings resurfaces her grief, igniting further animosity toward Luis for selling their childhood home.

As Gretchen uncovers the horrific truth about her sister Alma and König's monstrous scheme involving the Hooded Woman, the chilling implications of her existence shatter her reality. The layers of deceit and manipulation surrounding her family's past begin to form a harrowing picture.

With urgency and desperation, Gretchen confronts König as he enacts his vile plans, risking her own safety in a frantic bid to save Alma. The stakes heighten with each revelation, propelling her into danger as she attempts to reclaim her sister’s fate.

As chaos erupts, Gretchen faces not just König and the Hooded Woman but also the dark reality of Alma’s true nature. In a cataclysmic confrontation, sisterly love and resilience ignite a fierce battle for survival amidst the horrors unleashed.

Gretchen and Alma narrowly escape the facility as violence escalates around them. With the Hooded Woman and König defeated, they seize the moment to reclaim their freedom, stepping into the light and out of the clutches of their past torment.

As the sisters leave behind the chaos of the resort, Ed waits to take them away. With a glimpse of hope and a fresh chapter ahead, Gretchen and Alma drive off together, their bond solidified amidst the horrors they overcame.