The COVID-19 virus pandemic has flooded people around the world with a great deal of unconfirmed, pseudoscientific, and disturbing information, creating fertile ground for the development of a number of specific conspiracy theories. Influential world events drive conspiracy theories because they provide people with simple explanations for complex situations. Although conspiracy theories are a widespread phenomenon among the populations of different cultures and have been prevalent throughout human history, some people are still more inclined to hold such beliefs. By studying different approaches and studies in this area, numerous theories have been generated about who accept conspiracy theories and why, i.e., several individual and social determinants of belief in conspiracy theories have been defined to provide the possibility of managing the identified factors in the long term. Although numerous cultural, social, cognitive and individual differences have been demonstrated among individuals who support conspiracy narratives to a greater or lesser degree, there is more and more talk about the general conspiracy mentality of individuals. Belief in conspiracy theories brings numerous negative outcomes for the individual and society and is associated with a whole range of negative social, health, and civic consequences. Therefore an integrated and comprehensive understanding of the psychosocial basis and development of such beliefs is needed, which is also contributed to by the growing interdisciplinary interest in this topic. By analyzing the findings of studies conducted from different scientific approaches, this paper attempts to answer important research questions: What theories and/or models are used to explain belief in conspiracy theories?, What are the empirically demonstrate determinants of belief in conspiracy theories?, What is the relationship between belief in conspiracy theories and violent behavior and lawbreaking?, and What are the practical implications and recommendations for future research that emerge from the analysis of the scientific literature in the area of belief in conspiracy theories?