Abstract: The invention is directed to substituted benzimidazol-2-ones of Formula I, wherein A, X, Y, m, n, R1, R2, R3, R4, and R5 are as described in the specification, which are useful as vasopressin receptor antagonists or Neuropeptide Y Modulators for treating conditions such as aggression, obsessive-compulsive disorders, hypertension, dysmenorrhea, congestive heart failure/cardiac insufficiency, coronary vasospasm, cardiac ischemia, liver cirrhosis, renal vasospasm, renal failure, edema, ischemia, stroke, thrombosis, water retention, nephrotic syndrome, central nervous injuries, obesity, anorexia, hyperglycemia, diabetes, anxiety, depression, asthma, memory loss, sexual dysfunction, disorders of sleep and other circadian rhythms, and Cushing's disease.