Baptize/immerse in the name of Father Son and Holy Spirit, will save you from sin. In other word, if one was rapist, after immerse in those 3 name, will change, and produce the goof fruit.
But baptism in water, even if you immerse 100 feed below see level, as long as not baptize in those 3 name, not going to have any good.
My Friend is gambler and adulterer, Her mom ask him to be baptize, her mom believe baptism will save him from sin and hell.
Than he baptized, he celebrate his baptism with some of his friend, drink and watching TV, it happen hot movie was broadcast.
Before the movie end, he can't resist went to his prostitute girl friend to commit another adultery.
Water baptism is only symbol, didn't have any power to save you from sin. It just a ritual. one must baptize in those three name, mean study the word and immerse in it. then one will save from sin.