Devil Between the Legs (El diablo entre las piernas)

Beatriz and the old man have been together for decades leading a life of mutual hatred and liking for each other. A retired homeopathic pharmacist, the Old Man now divides his time between their Mexico City home and spending time with his mistress. Beatriz, when not bearing the brunt of the Old Man's tirades, sneaks out to take tango lessons with a younger dancer. Having spent years in a harmony of hate and being intimate enemies, their reality is only witnessed by their maid who picks one side and takes matters into her own hands.