Susan, a young woman, witnesses the brutal murder of her mother by a ruthless killer named Silk. Traumatized and suffering from amnesia, she finds herself committed to a mental institution where she hopes to recover her lost memories. Unbeknownst to Susan, Silk has infiltrated the institution under the guise of an orderly, determined to eliminate any potential threats to his secrecy. The institution itself harbors dark secrets, with unethical medical experiments being conducted by the sinister Dr. Beverley. While Susan tries to piece together her fragmented memories, she faces the terrifying dual threat of Silk and the malevolent practices of Dr. Beverley.

As Susan navigates the treacherous environment of the institution, she encounters various patients and staff, each with their own troubled pasts and hidden agendas. She realizes that the institution is far more dangerous than it appears on the surface. Trust becomes a scarce commodity as she forms uneasy alliances while attempting to uncover the truth behind her mother's murder and the institution's disturbing experiments. Tensions rise as Susan finds herself increasingly in danger, pushing her to find a way to escape before it's too late.