Remake of famous 1936 ranchera musical.

Two rival combos play practical jokes on each other during a festival where they're performing... then a sideshow artist is murdered and several of them fall under suspicion for the crime.

The old folks back home in Spain have arranged a marriage for their niece living in Mexico. To side-step their demands, she pretends to be already married, with a male acquaintance who agrees to pose as her husband while her relatives are visiting.