When Evil Lurks (Spanish: Cuando acecha la maldad) is a 2023 supernatural psychological horror film written and directed by Demián Rugna (You Don't Know Who You're Talking Too, Terrified). An international co-production of Argentina and the United States, the film stars Ezequiel Rodriguez, Demián Salomon, Luis Ziembrowski, Silvia Sabater, and Marcelo Michinaux.
The film was theatrically released by IFC Films on October 6, followed by a release on the Shudder streaming service, as well as AMC+, on October 27. Watch the official trailer below.