The film begins with "Alice" going to judo, tasking her husband, "Ralph," with clearing the snow from the walkway—a request he promptly neglects. Upon returning home, he discovers a uniformed body on his doorstep: the mailman, who appears to have fallen on the ice and won't be delivering any more letters. Overcome with panic, Ralph brings the man inside and must devise a plan to avoid legal repercussions. Initially, he decides to complete the mail route to deflect suspicion, but then loses his keys, is arrested while attempting to enter his own home, and leaves "Alice" to find a broken window, a nude postal worker, and an unfinished bottle of Scotch. It turns out she previously had a romantic connection with the postman, so now it falls to her to figure out how to get rid of the body! Only then does she realize he isn't simply unconscious but is actually dead. The question arises: did "Ralph" cause his death? She runs away, and when he returns from the police station, he finds that the body—and his wife—have vanished, so he decides it’s best to just put the whole thing behind him and relax by the fire. I found the dark humor quite amusing, especially the absurdity of the final two minutes involving the police and coroner deciding practicality was preferable to a thorough investigation. The straightforward animation style, set against a snowy backdrop, works well, and Sandy Sanderson's narration maintains a wry tone throughout.

Source on TMDB