Iris has had a long, complex friendship with Walter. Walter is an irresistible charmer, a brilliant author, a lover of many women, and a master at letting down loved ones. When he dies suddenly, Iris is left to deal with all he left behind — three ex-wives with unfinished business, his interrupted literary legacy, and his beloved beast Apollo. It's not that Iris doesn't like dogs, but this is Manhattan, and she’ll get kicked out of her building if they find out she’s pretty much trying to house a horse.
Has a jokey sequence in the intro around a dinner table, discussing about how a Hans Christian Anderson story is about raping a woman. Short, not exorbitantly detailed, less than a minute. Very unnecessary.
Also. The main guy you’re supposed to be grieving the whole movie is a groomer. So, it’s not explicitly stated. But a duck is a duck.