In this paper, I investigate some syntactic and semantic properties of the implicit argument in the short passive. Based on the distribution of secondary depictive predicates, I argue that the short passive contains a syntactically projected null argument. I propose that this argument can either be an ultra-indefinite in the sense of Koenig (2008) or a null version of the generic pronoun one. I analyze ultra-indefinites as DPs without phi-features. Lastly, I discuss the consequences of my conclusions for the nature of VoiceP and the status of implicit arguments generally.