We will recruit 30 patients seen in the hospital by the Liaison Team with a suicide attempt who score above the threshold for personality disorder and drug or alcohol abuse using SAPAS,AUDIT and DAST assessments. If the patient is interested in the study a research assistant will obtain consent and conduct a baseline interview at which full personality disorder diagnostic status will be confirmed and further psychological measures will be taken. The patient will be randomised to ENGAGE (CBT) or TAU and interviewed again by the research assistant at 3 months post randomisation. The research assistant will be blind to treatment group. Those patients randomised to ENGAGE CBT will receive 6 sessions of the intervention from a CBT therapist. ENGAGE will help patients to identify problems, use problem solving to help prioritise and resolve problems and motivate patients to attend the treatment recommended by the liaison team. The ENGAGE therapist will encourage and, if necessary, facilitate patients with substance abuse and personality disorder to engage in the appropriate NHS services.