This paper aims to provide a brief review of the much neglected 'dark side' of social capital. To highlight the contextual nature of social capital by way of examples from different geographies, we draw attention to the potentially detrimental effects associated with the concept. A significant body of literature addresses the advantages of being connected to various types of social bridges and bonds. While emphasising the 'bright side' of social capital, that literature pays limited attention to the negative attributes of social ties and their potentially detrimental effects on a number of social and economic outcomes. Although it is not reasonable to establish a dichotomy between 'good' and 'bad' social capital, it is possible to conceptualise such negative attributes in the light of the existing literature, in which the context-dependent nature of social capital is accentuated. We focus on two critical questions: (i) Why is it essential to address the contextual nature of social capital? (ii) How could geography come into play?