Watch MoviestoWatch. The animated film Longing deals with a parent-child relationship torn apart by grief. After Chris’ mother vanishes without trace, he and his father Toon miss her intensely. While Chris weeps and seeks consolation from Toon, Toon is unable to show his vulnerability. As Toon literally swallows his tears and they start to fill up his body like a reservoir, he becomes alienated from his young son.