Law & Order: Special Victims Unit 18x15 Know It All Season 18 Season 0 0 EpisodesSeason 1 22 EpisodesSeason 2 21 EpisodesSeason 3 23 EpisodesSeason 4 25 EpisodesSeason 5 25 EpisodesSeason 6 23 EpisodesSeason 7 22 EpisodesSeason 8 22 EpisodesSeason 9 19 EpisodesSeason 10 22 EpisodesSeason 11 24 EpisodesSeason 12 24 EpisodesSeason 13 23 EpisodesSeason 14 24 EpisodesSeason 15 24 EpisodesSeason 16 23 EpisodesSeason 17 23 EpisodesSeason 18 21 EpisodesSeason 19 24 EpisodesSeason 20 24 EpisodesSeason 21 20 EpisodesSeason 22 16 Episodes 18x1 - Terrorized 18x2 - Making a Rapist 18x3 - Imposter 18x4 - Heightened Emotions 18x5 - Rape Interrupted 18x6 - Broken Rhymes 18x7 - Next Chapter 18x8 - Chasing Theo 18x9 - Decline and Fall 18x10 - Motherly Love 18x11 - Great Expectations 18x12 - No Surrender 18x13 - Genes 18x14 - Net Worth 18x15 - Know It All 18x16 - The Newsroom 18x17 - Real Fake News 18x18 - Spellbound 18x19 - Conversion 18x20 - American Dream (1) 18x21 - Sanctuary (2) A man under investigation for rape and murder threatens to expose the secrets of those working the case.