Ketamine is a " dissociative anaesthetic " with fast analgesic and amnesic properties that has been used since more than 40 years. Today, ketamine abuse has become a public health concern. We report the case of a 23-year-old patient who came to the Casablanca Addictology Centre asking for help with ketamine abuse. At the interview the patient presented depressive symptoms and had already made 3 suicide attempts, the last one dating from two months ago. Mr J. started his consumption of psychoactive substances during adolescence (age 14) by experimentation, the first substance was tobacco followed by crack, alcohol and ketamine. The ketamine dependency started one year ago, with 2 grams of ketamine snorted per occasion (twice a week). The reported psychoactive effects of ketamine ranged from dissociation and depersonalisation to psychotic experiences. The patient has never made a withdrawal attempt. Given the increasing therapeutic importance of ketamine, our aim was to highlight the other side of the problem, the significant risk of ketamine abuse. Thus, in this article we tried to review the history of ketamine, its growing role as a "dance drug", as well as the specifics of the management of ketamine misuse. In conclusion, the clinicians must stay vigilant, however this should not be a deterrent to appropriate prescribing.