Plerng Boon (2017)

Two best friends love the same man.

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Both dramas deals with how the FL's friend/relative have affair with the ML and destroys the marriage. The ML in both dramas are acted by the same actor. Although the concept is the same, the way the FL deals with it is completely different.

The loving couple is separated by FL's best friend"s affair with the husband, ML. The result of the affair is also the child and the second female lead is persistent in pursuing ML who is weak.

The similitudes in these shows is that they revolve around cheating.
Otherwise, while Plerng Boon has much more production value (quality of the show, acting, screenplay...) as a Ch3 product and the story is more "complex" Talay Prae is of a lesser quality overall.

Another difference is that the motivation of of the cheating partner and their characterization are world apart.

A case of man torn between the wife and the mistress.

In both lakhorns the FL (wife) is extremely gentle and forgiving while the ML is selfish and weak.

In "Nam Sor Sai" its worse because they have been married for a long time and have two kids together. The betrayal is much hard to bear because of that.

Ex-lover could not let go! Although they are straight and gay is the same all the song. The grass is not always greener on the other side.HAHA

Two former best friends fight over one man. One has a failed relationship (he died and cheated on her), and the other has many but marries the male lead. Jealousy and attempted seduction ensue.

same plot story about two women friendship broken, because they fall in love with same person