Big Deal (1984)

S7E2 Down Among the Fearful (2)

While investigating the murder of Vicki Walmsley, Lewis and Hobson receive news of a stolen supply of etorphine from the Garsington Equine Centre. This potent drug had been used a year prior on a horse that hurt its young rider, Joshua Grace, who happens to be the brother-in-law of Reuben Beatty, the initial victim in the murder case.