I have not read it - but I will!

Set in Stratford, England, in the late 16th century, Hamnet imagines the emotional, domestic, and artistic repercussions after the world's most famous (though never named) playwright and his wife lose their only son, 11-year-old Hamnet, to the bubonic plague in 1596. Four years later, the boy's father transposes his grief into his masterpiece — titled with a common variant of his son's name — in which the father dies and the son lives to avenge him.