During the last two decades, the progression of research dedicated to fingermark detection has continuously gained speed, as shown by the increasing number of publications in the field. Along with the emergence of new technologies, one can witness a split in the main research interests. First, those who advocate the use of emerging technologies to offer new possibilities in terms of detection and/or gain information about the donor's lifestyle, for example. Second, those who prefer slowing down the pace to strengthen the foundation of the discipline, by gaining a better understanding of some detection mechanisms or interaction schemes between secretion and substrates. These last years have also witnessed the publication of a couple of articles proposing guidelines for people not accustomed with research in the field of fingermark detection. This approach constitutes a step further to promote quality research and strengthened conclusions, especially in regards with emerging technologies. In this context, this paper aims at introducing both trends through critical opinion. As for the title (in reference to a famous movie from the late nineties), this contribution is built to offer the readers a glance to a limitless world in which everything seems possible (blue pill) or to a world in which things are not as easy as expected, with numerous fundamental issues still to be addressed (red pill).