Ottawa is baking under a July heatwave when the Homicide and Major Crimes Unit is called to help track down missing three-year-old Charlie McGowan. This is the second missing person case in nine months - a university exchange student never made it back to her Carleton University residence from a downtown party in November.

At first, the two disappearances appear unrelated, but as true crime podcaster Ella Tate and Detective Liam Hunter dig deeper into both files, unsettling relationships begin to emerge. Evidence, however, remains frustratingly out of reach as the clock keeps ticking and concern for both missing victims takes on a heightened urgency.

And then Liam Hunter gets a call that a body's been found on the Ottawa River Parkway ...