No one knows what's truly behind the genial facade of Ramon (Dario Grandinetti), a college instructor who's so meticulous, nothing in his world seems out of order. And yet, his basement is a dark place of chaos, one in which he's forced an unwitting guest named Laura (Goya Toledo) to stay and play a deadly game. The stakes are high: If she wins, she walks; if she loses, her life is on the line. Laura hopes she can hold her own.