Dark Impulse (Spanish: Lo mejor de Eva)[1] is a 2012 Spanish erotic thriller film directed by Mariano Barroso, which stars Leonor Watling and Miguel Ángel Silvestre alongside Nathalie Poza, Adriana Ugarte, Helio Pedregal and Josean Bengoetxea.

Featuring the backdrop of corruption and careerism,[2] the plot tracks the relationship between Eva, an implacable judge, and Rocco, an alluring male prostitute serving as a protected witness.

[4] Dark Impulse was produced by Telecinco Cinema and Lo mejor de Eva AIE production,[5] in collaboration with Malvarrosa Media, Sentido Films and Kasbah PC.

[9] Javier Ocaña of El País observed a linearity in the male prostitute's character (who starts the film the same way as he ends it) and the absence of a real climax, yet, imperfections and some sequences lacking in plausibility notwithstanding, considered the film "never slackens in its rhythm and it is commanded by a very adequate acting couple.

"[2] Jordi Batlle Caminal of La Vanguardia gave Dark Impulse 2 out 5 stars, deeming it to be a "convincingly crafted film but unable of instilling emotions in the viewer", declaring to be amused by the final plot twist.