Dateline: Secrets Uncovered (2017)

S09E31 Deception

Title: Deception Plot: Wendy Ratte, a laid-back mom of two, has vanished without a trace. Authorities dive into her disappearance, uncovering a contentious rivalry with a neighbor and the unsettling possibility of a serial predator. However, as they dig deeper, they begin to suspect that the real threat may be much nearer than expected. To resolve this mystery, an intricate undercover operation is set in motion, aiming to reveal the truth behind Wendy's disappearance.