“Transfusion” (** out of four) was an obtuse emotional melodrama about a former special forces solider (Sam Worthington) whose wife (Phoebe Tonkin) dies and he has to do everything possible to keep his young son (Edward Carmody) from being taken from him, even if this means returning to his former lifestyle in the criminal underworld. Film never really connects emotionally and never has the compelling power it needs, despite some scattered effective moments. The usually dynamic Worthington is monochromatic and one-note here. Writer/director Matt Nable has a key supporting role as an underworld enforcer.