Last updated on Tuesday 21 January 2014 at 01:07 UK

Watch Grey's Anatomy Series 1 Episode 7 Online Free

Grey's Anatomy Series 1 Episode 7PLAY

Derek and Meredith try (unsuccessfully) to be discreet as they spend the night together at Meredith's house, but their haggard appearance speaks volumes to everyone - including Bailey, who warns Meredith to end the relationship. Meanwhile George suspects an anesthesiologist of drinking on the job but is reluctant to speak up about it, Alex treats a former schoolmate who finds honor in self-mutilation, Izzie's boyfriend takes extreme measures in order for them to spend more time together, and Cristina seems to be battling a case of the flu.

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