The majority of this story takes place in Bethlehem of Judah with Elimelech (our God is King) and Naomi (pleasant), and their two sons (Sickness and Spent). They move to the other side of the Dead Sea to the land of Moab, in time of famine, and they stay there for ten years. Their two sons married women that were not Israelites, they were Moabites, and after very little time all three men died. Naomi was left alone with her daughters-in-law. She decided to return to Judah as Mara (bitter) by herself, but Ruth (satiation), Naomi's daughter-in-law, resisted and set off with Naomi back to her land, despite their uncertain future as widows. A point that I find interesting is that Naomi may have wanted to go back by herself so that she may acquire the kinsman for herself.
Boaz was Elimelech's close relative and therefore needed to fulfill the law of Levirate marriage. This law stated that if a husband died before he and his wife can produce offspring for means of inheritance, then the deceased man's closest relative had to take the widow in and produce a child for the dead man. Boaz, being a righteous man, blessed Ruth on the first day of their acquaintance that she may find refuge under the Lord's wings (for all she had done for Naomi) and then he himself ends up covering her with his own cloak. Boaz, therefore, ends up being Naomi's redeemer and through their union, Ruth bears a child and names him Obed (worshiper).