1. You go to Flemeth's hut with your dog which you get to rename.
2. You find warrior elf.
3. You go to Tower of Magi
4. You read books
5. You meet token mage
6/7. You go to Cadash Thaig and Elven Ruins (From Dalish Elf Origin Story)
8. Go to the last area from Awakening
9. Fight Easy Boss
10. Meet Morrigan
They made your dialogue choices very ambiguous with Morrigan. Most of them involves "WHY DID YOU BETRAY ME" or if you chose the dark ritual ending in Origins you get a "WHERE IS MY KID!?" choice as well. Or you could kill her. The character I imported (my main char) loved Morrigan and had the child, and in my ending I left with Morrigan (but we left the dog behind which.. made me laugh.)
It's a AT MOST an hour DLC. I played on Nightmare mode and it took me around 30-40 minutes. Is it an epic dlc like Liara's? No. But did it give the closure to my character/Morrigan's story? Yes. If you're big on roleplay as I am and your character had Morrigan as a mate, do go get it. If not, go buy the Liara DLC if you already haven't