Is this a remake of "Tara Road" or just blatant plagiarism ?

Rating: 3/10 (8 December 2006)

Probably the latter. Consider the Tara Road plot line: "Two women -- one American, one Irish -- swap houses and alter the course of their lives. "
Now consider the Holiday plot line: "Two women troubled with guy-problems swap homes in each other's countries, where they each meet a local guy and fall in love." (Exactly the same thing happens in Tara Road)
I cannot believe Maeve Binchy is not getting royalties for this. It is the most blatant case of plagiarism I have ever witnessed. This remake is also not as good as the original. Surely there is a case for copyright infringement here.