That '70s Show

Construction workers unearth the remains of 1970s crime boss Vince Bianchi. His consigliere, Harold Leon (Jon Polito), is delusional and thinks it is still 1978. The detectives, with Martha's assistance, must re-create the era in costume and attitude so that Harold will fully cooperate in the cold case. Harold reveals he and Vince shared a secret that factored into his boss's death.