Doris May Lessing, the Nobel Laureate has a great contribution in literature. In her notable work Ben in the World she has focused on the abnormal psychology of Ben, the protagonist as well as of other characters in the novel. This paper concentrates on the psychology of the Janus-faced people of modern society and especially of Ben who is abnormal by birth and needs mental support from the family, friends and all other responsible people of society but he is deluded and misguided by most of all. This paper tries to check the psychology of Ben based on Sigmund Freud’s theory in which Freud confers that the personality of a person is the outcome of his/her unconscious thoughts and unconsciousness is decided by the upbringing of parents and the behaviour of the friends and colleagues. Thus the paper throws a light on the money minded mentality of the people in the materialistic age