Based on the best-selling novel by George V. Higgins, The Friends of Eddie Coyle chronicles the last days of a weary Boston-based weapons dealer. Eddie Coyle (Robert Mitchum) doesn't want to serve a sentence in prison, so he becomes an informant for the the treasury department. Coyle is likewise unwilling to give up his lifestyle, thus he continues his illegal gun-running operation for the underworld. The mob becomes aware that Eddie is squealing to the cops, so they send his friend, Dillon (Peter Boyle), to rub him out. Dillon compassionately takes Eddie out on the town, treating him to dinner and a hockey game...then leaves him in a bowling-alley parking lot after carrying out his orders.