Atmospheric horror metalcore, around four minutes, with a claustrophobic classic psychological-thriller mood. Start immediately with a jagged stop-start breakdown, distant door knocks, dissonant strings, low piano and heavy acoustic percussion. Keep the verses intimate and whispered, with eerie violin textures and rain-like ambience. Make every pre-chorus erupt into an abrupt breakdown with extreme screamed vocals, then contrast it with a haunting, memorable clean-vocal chorus. Add choppy breakdowns after the choruses, using sudden silences, irregular knocks, metallic knife-like swishes and stylized muted impact sounds—cinematic and suggestive, not realistic gore. Build tension through orchestral stabs, unsettling room tone and sharp dynamic drops. End with a final breakdown, one whispered line and silence. Dark, suspenseful, original; no imitation of any specific artist or song.