When Patrizia Reggiani, an outsider from humble beginnings, marries into the Gucci family, her unbridled ambition begins to unravel the family legacy and triggers a reckless spiral of betrayal, decadence, revenge, and ultimately… murder.

House of Gucci vacillates between inspired camp and dour drama too often to pull off a confident runway strut, but Lady Gaga's note-perfect performance has a timeless style all its own.

It can be slow going, but House of Gucci adds up to a fascinating story -- and Lady Gaga's performance is a knockout.