Fan + Teen Idol = Romance?

Love and Mathematics

After his time in the boy band "Equinoccio", Billy Lozano is in his late thirties very frustrated with his life, he lives with all the comforts in the house of his dreams, but he feels like the biggest loser in the world since his last entrepreneurship failed once again, he has no other occupation but to take care of his son and his wife's dog. Until one day he meets Monica, an ex-fan of "Equinoccio" who moves in the house in front of them and encourages him to resume his artistic career.