Alyson Hannigan

When widowed astronomer Steve Mills inadvertently causes a gravitational disruption in deep space, a race of hyper-advanced alien lifeforms sends one of their own to investigate, disguised in the alluring human form of Celeste. Tasked with seducing the lovelorn Steve in a bid to gain access to his scientific research, Celeste finds herself falling for the man she's been sent to swindle. But they've not counted on Steve's young daughter Jessie, who's...