Argentine helmer Rafael Filipelli's understated and deliberate, slice-of-life drama Night Music (AKA Musica Nocturna, 2007) unfurls over the course of four evenings, with its depiction of an emotionally-strained marriage between husband and wife Federico (Enrique Pineyro) and Cecilia (Silvia Arazi), which Filipelli sets against the backdrop of semi-vacant, nocturnal Buenos Aires. He is a music critic pushing 50 and grappling with the completion of his first book; she is a playwright, in rehearsals for a major new production. Both have hit an emotional lull in their marriage that inspires each to coolly flirt with infidelity. As Federico flirts dangerously with the theatrical director's assistant, Cecilia reconnects at length with a past acquaintance, belletrist Sergio (Horacio Acosta), who may or may not have been amorously involved with Cecilia at one time.

Cecilia y Federico son un matrimonio de mediana edad. Ella es escritora de teatro y está punto de estrenar una obra; él, hace ya un tiempo, trabaja en la escritura de un libro sobre música que siempre retrasa y nunca logra terminar. Durante cuatro noches recorreremos los caminos de esta pareja, cuyo principal asunto parece ser el desigual desarrollo de las carreras profesionales de ambos y los pequeños conflictos que esto crea en sus vidas cotidianas.