Sirens rise with the king tide as coastal cities blink to black; whale‑song twists into code and ships turn themselves toward shore. Johansson plays Dr. Mara Keene, an oceanographer decoding the hymn that hijacks human nerves . Jolie rules the deep as the Sea Queen—regal, merciless, wearing a crown of coral and knives .

Set pieces crash: a bioluminescent swarm avalanches through a glass tunnel aquarium; a waterspout tosses patrol boats like dice; divers in exo‑suits duel trident‑to‑harpoon beneath a storm‑lit pier; a rooftop evac where song turns friends into hazards . “Sonic mirrors” fail, alliances fray, and a child hums the last, missing note that could divide sea from shore .

Color grade swings teal‑to‑obsidian; choirs fuse with sonar thumps; scales flash like meteors in rain. Final sting: the surf withdraws, revealing a staircase of shells leading under the city. The Queen whispers, “Remember.”