I don't know. It could be based on a true story or just be the creation of the author's imagination. You might be able to find more information on the book's jacket or in interviews with the author.
It could be either. There are many works titled in a similar way, some are books and some are movies. Without more specific information, it's hard to tell for sure.
Well, sometimes it's hard to tell. It might have elements drawn from real life, but could also be a creation of the author's imagination. Maybe you could look for interviews or behind-the-scenes info to find out for sure.
Yes, 'The Perfect Wife' is often based on some elements of true stories. Many works in this genre draw inspiration from real - life situations, relationships, and social phenomena. For example, the concept of an ideal or 'perfect' wife in society can be reflected in real - life expectations and experiences of marriages.