'Hyena' deals with very competitive, private lawyers who only work for the richest 1% of society. Lawyer Jung Geum Ja crosses the boundaries of law and lawlessness, justice and injustice, ethics and corruption, She is a true hyena that chases after success and money no matter what it takes. Armed with the strongest survival instincts, she endures through it all. Yoon Hee Jae is a successful, elite lawyer. Confident in his abilities, he possesses a brilliant mind that is wrapped around his ego. Using his skills to support the highest in the land, he's an expert at maneuvering the law to cater to their needs.