Dateline Episode Trailer: Secrets in Pleasant Prairie | Dateline NBC

The investigation into the poisoning death of a Wisconsin mother takes a surprising turn when detectives learn she wrote a letter just days before her death pointing to a possible suspect. Watch this full episode: https://www.nbc.com/dateline/video/se... Like us on Facebook:   / datelinenbc   Follow us on Twitter:   / datelinenbc   Follow us on Instagram:   / datelinenbc   Follow us on TikTok:   / nbcdateline   Stream on Peacock: https://www.peacocktv.com/watch/asset...