A young woman named Helen, who has spent much of her life in the shadow of her controlling mother, becomes embroiled in a dark mystery that begins to unravel after her mother's death. In her quest to uncover the truth, Helen returns to the unsettling family home, where she encounters secrets that have remained hidden for far too long. As she explores the house, she stumbles upon a strange secret laboratory revealing horrifying experiments related to her family, including the unsettling creation of beings that defy nature itself.
As Helen delves deeper into her mother's secrets, she begins to experience strange visions and encounters with entities that seem to be a product of those experiments. Things become even more complicated when she discovers that she is not only facing the echoes of the past, but she is also being pursued by what has been created in that dark experimentation room. With the help of a friend, she tries to unravel the truth, but she realizes that some secrets are better left buried. The terror escalates as the line between reality and madness begins to blur, and the young woman must confront not only the monsters that inhabit her home but also the demons of her own family. In a race against time, Helen fights to rid herself of the dark legacy that threatens to consume her.