Here's why:
* Implausible means something that is not believable or likely to happen. It suggests that the story is far-fetched, unrealistic, or even unbelievable.
Here are some other words that could be used, depending on the specific nuance:
* Unbelievable: This word emphasizes the lack of credibility.
* Far-fetched: This implies that the story is highly improbable and exaggerated.
* Outlandish: This suggests the story is extremely unusual and bizarre.
* Preposterous: This word implies that the story is completely ridiculous and absurd.