PhD (non-)completion rates have been considered important criteria with which to evaluate the effectiveness of doctoral programmes and of universities' performance. To date, there has been a lack of qualitative studies on the voices and experiences of funded international students who discontinue doctoral research degrees. This paper uses qualitative methods and six themes of a life course perspective to uncover the 'hidden' experience of international Vietnamese students who dropped out of funded doctoral programmes in social sciences and humanities. Its findings suggest that linked/independent lives and the timing of live themes helped to understand reasons for international doctoral students to drop out, which underline their engagement with research networks, academic identity and familial responsibilities. Meanwhile, the consequences of dropout illustrate the intersections of five themes: linked/independent lives, development risk and projects, the timing of lives/interplay of human lives and historical times, and diversity in life courses. The five themes capture diverse life trajectories and forms of agency developed by PhD non-completers while negotiating social pressures and institutional politics in their home institution as well as their perceptions of well-being and life priorities. Their life trajectories and forms of agency are gendered and culturally specific, with female non-completers being more active in searching for and building back their 'agentic orientations' through learning new skills, entering motherhood or leaving academic institutions. These findings are useful for reflecting on the current supporting structures, especially mental health support, for international doctoral students and supervisor training.