Say It Isn't So (2001) on Netflix

Plot summary

Gilly Noble brings a stray cat named Ringo to the shelter in Shelbyville, Indiana, where he works. Jo Wingfield, an aspiring hairdresser, cuts his hair and mentions that she has lost a tail-less cat named Ringo; the excitement makes her cut off part of his ear, which is reattached at a hospital. She invites him to lunch the next day, and he meets her greedy mother Valdine and her invalid father Walter. The two date for six months and get engaged. Then a private detective, Vic Vetter, tells Gilly that the Wingfields are his parents. Gilly joins the household, Jo starts over in Beaver, Oregon, and Gilly is fired from the shelter, ending up removing roadkill from the highway.