ABC 20/20 “They Know Everything” June 20 2025

ABC’s 20/20 returns with an all-new two-hour special titled They Know Everything airing Friday, June 20, 2025, at 9/8c. The episode dives into a chilling case involving deception, betrayal, and a calculated murder — all uncovered through a secret recording never heard until now.

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The story unfolds around a tangled web of lies that shattered lives and shocked a quiet community. With exclusive interviews, never-before-seen footage, and dramatic twists, 20/20 pieces together the puzzle that ultimately exposed a killer hiding in plain sight. At the heart of the episode is the bombshell audio — a secret recording that plays a key role in unraveling the truth.

Anchored by seasoned journalists David Muir and Deborah Roberts, the special promises a detailed, emotionally charged look at how one investigation brought justice after months of uncertainty. They Know Everything will be available to stream the next day on Hulu.