The Postmortal

The setup and premise are interesting. At first, I got a World War Z vibe because of the “on the ground, as it happened” style. Unfortunately, where World War Z branched out into many different sources and perspectives, here, it's limited to the journal of one person. Because of this, the characters in John's life become vehicles to express how the postmortal cure would affect different slices of society.

E.g.
The father: an older person.
The sister: a married person with kids.
The mother of John's child: a person making the decision to have kids.
The new girlfriend: a person making the decision to get married.

Nobody feels real, and their conversations often sound like philosophical debates.