My Better Halves (1997)

Juan Guerrero has problems with his partner so they distance themselves, at that time he meets Ángeles 'Lali' Zabala and falls in love with her. Nothing is ever simple with Juan, so when he and his wife make up, he can't decide between her and Lali. From there, more characters complicate these entanglements: Juan's friends and relatives, former partners of his lovers, Juan's doppelganger named Santiago Gariboti and a kidnapper dressed in a Santa suit.