Customer First(2020)

They say that people who in their seventies would have told 90,000 lies throughout their lifetime.

Customer First is a Chinese series about three unconventional problem-solvers who use deception to uncover truth. Dai Meng, a disgraced lie-detection expert, leaves his job after a costly mistake and launches a firm willing to tackle any case—emotional disputes, unpaid debts, workplace conflicts—provided it stays within legal bounds. His sharp ability to read the signs of dishonesty makes him invaluable to clients seeking answers. When he encounters Liao Duo Duo, a rival analyst with similar skills, their competitive clash quickly turns into an uneasy partnership. As Dai Meng's business flourishes, the two must navigate their conflicting methods and egos while helping clients navigate their own webs of lies and hidden truths.