Okay, it won't win any awards for originality, the vengeful spirit thing has been done a hundred times before, but it is a interesting and engaging take on the subject matter of Samoan tattooing and lore.
While it perhaps isn't as gory as the 18 certificate implies, the method of death is inventive, and looks fantastic on the screen.
Also looking fantastic are the many many tattoos that adorn the bodies of almost the entire cast. From that perspective the film is beautiful. And Jason Behr does a good job of looking sexy with a body covered in ink.
The love backstory is effective, and the story of how the spirit became vengful is also good, even if the spirit himself his unfortuantely CGI.
I would recommend giving this film a go, its perfect Friday night fare for fans of the The Grudge, One Missed Call, et al.