Hell stalking

René gets to know Steffi. After the wedding, Steffi is stalked by her ex-boyfriend Ronny. He calls anonymously at all hours of the day and night. He rings the doorbell at night to get Steffi back. He lies in wait for her, stalks her, and one day even sits in her apartment and threatens her. It takes several moves, always in the hope of finally getting rid of her stalker Ronny. It is in vain.
Her mother-in-law Gundula also makes her life hell. She constantly interferes in Steffi and René's lives. One day, while the couple are at a funeral, Gundula takes away their two dogs. When René finds out what his mother has done to the animals, the couple's world collapses.
What has Gundula done with the animals, and how will their lives continue?