Panda sees land in his straw hut Leo, whom he knows well, chased by an angry cop, Lola. The young man, accused of the murder of a tennis champion, begs Panda to help him when he discovers his past as a police officer. Panda, convinced of his innocence, finds himself drawn in this case in spite of himself and returns to his former life as a cop.

A man is found stabbed in the early morning. Very quickly, everything leads Panda and Lola to a place: the Hacienda, a seaside bar known for its delirious karaoke evenings. So the Hacienda, little paradise? Panda doesn't believe it. And what's better than a box bar where alcohol flows to untie the tongues? Panda and Lola infiltrate undercover.