Music Box Films has bought U.S. rights to Mexican health insurance thriller “Monster with a Thousand Heads” following its premiere as the opener of the Horizon Section at the Venice Film Festival.

Rodrigo Pla directed from a script he co-wrote with his wife Laura Santullo, based on her novel about a desperate woman with a stricken husband confronting a negligent health insurance company in Mexico. Variety’s Guy Lodge said in his review that the film is “both urgent and even-handed.”

”Rodrigo Pla has delivered that rare thing: a smart, completely believable and brilliantly executed thriller with a social conscience,” said Music Box’s Edward Arentz. “Anyone who has unease about placing medical matters of life and death in the hands of profit-centric health insurance companies will immediately identify with, if perhaps not endorse, his heroine’s actions.”

Music Box plans a late spring release for the U.S.

Pla’s “The Delay” was Uruguay’s 2012 Oscar submission. The deal for “Monster” was negotiated between Tanja Messner of Memento Films and Music Box’s William Schopf.