Suzy is a prostitute in Crippled Kate's brothel within Novigrad.
She can be found dancing in the middle of the backroom of the main floor at Crippled Kate’s brothel.
When you strike up a conversation with her, she asks if you have come to kiss her and break the spell. However, when you ask her about herself she will outright refuse to tell you anything personal.
Note that employing the services from Strumpets at Crippled Kate's will never result in any backlash from either Triss Merigold or Yennefer and will not affect any of the romance endings Geralt can receive.