The Echo Chamber follows a woman recently released from a mental hospital as she struggles to navigate the outside world. Haunted by memories of her confinement and the relationships she left behind, she grapples with distrust, paranoia, and the lingering effects of trauma. As she attempts to rebuild her life, the boundaries between reality and her fears begin to blur, drawing her into a tense, unpredictable spiral. Friends, strangers, and even familiar places take on menacing undertones, forcing her to question not only others' intentions but also her own perception of reality.