So this was a good episode, but it wasn't without its flaws. Duchovny and Noonan do a great job with their roles, and the premise of the serial killer with the paper hearts - as well as Mulder's dreams about them - is good. Still, we have some issues. First of all, we are to believe that Mulder could possibly believe Samantha was kidnapped and murdered by this guy instead of abducted by aliens? The latter was practically confirmed to him by his informants and his own investigations. Furthermore, he went with one of the social security working aliens to a farm where alien clones of his sister - identical to her at the age she was taken - were being used to work by the alien/government alliance. This was explained to him. I doubt a few dreams could change all that. Second, we as viewers are supposed to be wondering was she or wasn't she. We have seen even more evidence than Mulder that she was abducted by aliens. It's outright stated that she was due to the syndicate. Mulder is known to make mistakes and act rashly due to his beliefs and his spirit but what he did in this episode was beyond stupid. So we have a good story, good performances, and some good suspense but it ultimately fails in writing due to what I described previously. And because of this the ending fails as well since we know that paper heart does not belong to Samantha Mulder.