The video above is the The Witcher 3 Wild Hunt The Price of Honor Secondary Quest Walkthrough and shows how to complete The Price of Honor, the quest featured in The Witcher III: Wild Hunt.
The video walkthrough covers the following objectives:
Examine the coasts of Faroe on the side facing Hindarsfjall.
Use your Witcher Senses to search the shore.
Examine the beach near the dead girl using the magic lamp.
Follow the footsteps.
Investigate the crime scene.
Tell the young man what happened to his betrothed and his brothers.