沉重的秘密第一季上映于2016年，是一部記錄片,紀(jì)錄片類型影視作品，對白語言是英語。講述了　　To unravel a murder mystery, investigators dig up secrets long thought buried, and come face-to-face with people who will do anything to keep those secrets in the ground.　　EP1.Secrets of the Desert　　EP2.Secret Vows　　EP3.The Signs on Their Bodies　　EP4.Her Mother's Secrets　　EP5.Ten Weeks Later　　EP6.Beyond the Gra ve　　EP7.Bottom of the Stairs　　EP8.A Curve in the Road　　EP9.The Last Calls She Made　　EP10.What My Mother Knew