A German man escapes from a Nazi concentration camp during World War II and finds himself stuck in Marseille, France, where he assumes the identity of a deceased author to secure a transit visa. As he navigates the bureaucratic maze of the immigration process, he becomes entangled in the lives of the refugees around him, including a desperate woman searching for her missing husband, the very man he's impersonating. The novel explores themes of identity, displacement, and the human struggle for freedom.

The book delves into the complex world of psychoanalysis, exploring the internal struggles that individuals face as a result of conflicting impulses and desires. The author argues that these internal battles are rooted in the basic human need for security and affection, which, when threatened, can lead to neuroses. The work emphasizes the importance of self-awareness and the examination of one's own psychological mechanisms to overcome these conflicts. This introspective journey is presented as a pathway to personal growth, self-understanding, and ultimately, mental health.