Synopsis by Hal Erickson
Outraged over the infidelity of his girlfriend Goldie (Beverly Michaels), thuggish Sam Donleavy (George Mathews) decides to bump the dame off. Unfortunately, there is a more than somewhat stiff penalty for murder, thus Sam intends to provide himself with an airtight alibi -- and pays a huge price to a guy named Barney (George E. Stone), who specializes in such matters. The fly in the ointment on this occasion is Sam's old pal Al (Joe Downing), who happens to be a police lieutenant. "The Big Switch" is the first of several Alfred Hitchcock Presents episodes to be based on a story by suspense specialist Cornell Woolrich.